Question
Choose the best answer.
The name of isotope is _____.
carbon-14
carbon-6
colbalt-6
2.
Choose the best answer.
The atomic mass number is _____.
6
8
14
3.
Choose the best answer.
The number of protons are _____.
6
8
5
4.
Choose the best answer.
The number of neutrons are _____.
12
8
5
Use the periodic table to choose the best answers.
5.
Use the periodic table to choose the best answer.
A sample shows two isotopes of magnesium. 24Mg was 75.2% of the sample. 26Mg was 24.8% of the sample.
The average atomic mass is _____. (Use significant figures to solve.)
25 amu
25.28 amu
24 amu
6.
Choose the best answer.
Which of these is the correct Lewis dot structure for phosphorous?
Lewis dot structure for phosphorous?
Lewis dot structure for phosphorous?
Lewis dot structure for phosphorous?
7.
Choose the best answer.
Which of these is the correct Bohr model for sulfur?
Bohr model for aluminum?
Bohr model for aluminum?
Bohr model for aluminum?
8.
Use the periodic table to choose the best answer.
How many electrons does sodium have?
11
3
1
9.
Use the periodic table to choose the best answer.
How many energy levels does sodium have?
23
3
1
10.
Choose all that apply.
Which TWO sublevels does sodium have?
f
s
d
p
11.
Use the periodic table to choose the best answer.
What is the electron configuration for sodium?
1s22s22p6
1s22s22p63s23p64s2
1s22s22p63s1
12.
Use the periodic table to choose the best answer.
Which element would be used for shorthand electron configuration for sodium?
[Ar]
[He]
[Ne]
13.
Use the periodic table to choose the best answer.
Which of these has the largest atomic mass?
Cs
Li
14.
Use the periodic table to choose the best answer.
Which of these elements has a higher electronegativity?
Li
Cs
15.
Use the periodic table to choose the best answer.
Which of these elements has the highest ionization energy?
Te
I
16.
Use the periodic table to choose the best answer.
Which of these elements has the smallest atomic radius?
I
Te
17.
Use the periodic table to choose the best answer.
Which element is more chemically reactive?
Br
Kr
18.
Use the periodic table to choose the best answer.
Which of these elements has a higher electron affinity?
Cs
Li
19.
Use the periodic table to choose the best answer.
_____ is a period 4 element that is most likely to lose electrons to form a cation.
Br
Ge
Ca
Choose the best answers based on the following information.
Tin is in period 5 and group 14 and has an atomic number of 50 and an atomic mass of 119.
20.
Choose the best answer.
How many valence electrons does tin have?
5
119
4
21.
Choose the best answer.
How many total electrons does tin have?
50
5
4
22.
Choose the best answer.
How many energy levels does tin have?
5
4
119
23.
Drag and drop the words with the descriptions.
the measure of how strong an atom attracts electrons when the atom is part of a compound
the amount of energy needed to remove an electron from an atom
elements in a group have similar properties due to these
this law did not work for group 2 elements
this law revealed that the math did not work for all groups of elements, like the halogens
Choices
law of triads
electronegativity
ionization energy
law of octaves
valence electrons
Use the periodic table to identify the following from the isotope.
Choose the best answers.
24.
Check if each statement describes an alkali metal, alkaline earth metal, transition metal, halogen, or a noble gas. More than one metal or nonmetal can be checked.
Correct Choices
Transition
Alkali Metal
Transition Metal
Halogen
Noble Gas
Alkaline Earth Metal
the least reactive family of elements
least reactive metals
includes many metals like copper, silver, and gold
always has two valence electrons
most reactive, especially with water
the most reactive nonmetals
The name of isotope is _____.
carbon-14
carbon-6
colbalt-6
2.
Choose the best answer.
The atomic mass number is _____.
6
8
14
3.
Choose the best answer.
The number of protons are _____.
6
8
5
4.
Choose the best answer.
The number of neutrons are _____.
12
8
5
Use the periodic table to choose the best answers.
5.
Use the periodic table to choose the best answer.
A sample shows two isotopes of magnesium. 24Mg was 75.2% of the sample. 26Mg was 24.8% of the sample.
The average atomic mass is _____. (Use significant figures to solve.)
25 amu
25.28 amu
24 amu
6.
Choose the best answer.
Which of these is the correct Lewis dot structure for phosphorous?
Lewis dot structure for phosphorous?
Lewis dot structure for phosphorous?
Lewis dot structure for phosphorous?
7.
Choose the best answer.
Which of these is the correct Bohr model for sulfur?
Bohr model for aluminum?
Bohr model for aluminum?
Bohr model for aluminum?
8.
Use the periodic table to choose the best answer.
How many electrons does sodium have?
11
3
1
9.
Use the periodic table to choose the best answer.
How many energy levels does sodium have?
23
3
1
10.
Choose all that apply.
Which TWO sublevels does sodium have?
f
s
d
p
11.
Use the periodic table to choose the best answer.
What is the electron configuration for sodium?
1s22s22p6
1s22s22p63s23p64s2
1s22s22p63s1
12.
Use the periodic table to choose the best answer.
Which element would be used for shorthand electron configuration for sodium?
[Ar]
[He]
[Ne]
13.
Use the periodic table to choose the best answer.
Which of these has the largest atomic mass?
Cs
Li
14.
Use the periodic table to choose the best answer.
Which of these elements has a higher electronegativity?
Li
Cs
15.
Use the periodic table to choose the best answer.
Which of these elements has the highest ionization energy?
Te
I
16.
Use the periodic table to choose the best answer.
Which of these elements has the smallest atomic radius?
I
Te
17.
Use the periodic table to choose the best answer.
Which element is more chemically reactive?
Br
Kr
18.
Use the periodic table to choose the best answer.
Which of these elements has a higher electron affinity?
Cs
Li
19.
Use the periodic table to choose the best answer.
_____ is a period 4 element that is most likely to lose electrons to form a cation.
Br
Ge
Ca
Choose the best answers based on the following information.
Tin is in period 5 and group 14 and has an atomic number of 50 and an atomic mass of 119.
20.
Choose the best answer.
How many valence electrons does tin have?
5
119
4
21.
Choose the best answer.
How many total electrons does tin have?
50
5
4
22.
Choose the best answer.
How many energy levels does tin have?
5
4
119
23.
Drag and drop the words with the descriptions.
the measure of how strong an atom attracts electrons when the atom is part of a compound
the amount of energy needed to remove an electron from an atom
elements in a group have similar properties due to these
this law did not work for group 2 elements
this law revealed that the math did not work for all groups of elements, like the halogens
Choices
law of triads
electronegativity
ionization energy
law of octaves
valence electrons
Use the periodic table to identify the following from the isotope.
Choose the best answers.
24.
Check if each statement describes an alkali metal, alkaline earth metal, transition metal, halogen, or a noble gas. More than one metal or nonmetal can be checked.
Correct Choices
Transition
Alkali Metal
Transition Metal
Halogen
Noble Gas
Alkaline Earth Metal
the least reactive family of elements
least reactive metals
includes many metals like copper, silver, and gold
always has two valence electrons
most reactive, especially with water
the most reactive nonmetals
Answers
Answered by
GPT-4o mini
Here are the best answers based on the questions provided:
1. The name of the isotope is **carbon-14**.
2. The atomic mass number is **14**.
3. The number of protons is **6**.
4. The number of neutrons is **8**.
5. The average atomic mass is **25.28 amu**.
6. The correct Lewis dot structure for phosphorus is **not provided**, but typically it has 5 dots.
7. The correct Bohr model for sulfur is **not provided**, but it would include 16 electrons arranged in levels.
8. Sodium has **11** electrons.
9. Sodium has **3** energy levels.
10. Sodium has the sublevels **s** and **p**.
11. The electron configuration for sodium is **1s²2s²2p⁶3s¹**.
12. The shorthand electron configuration for sodium is **[Ne]**.
13. Of Cs and Li, **Cs** has the largest atomic mass.
14. Of Li and Cs, **Li** has a higher electronegativity.
15. Of Te and I, **I** has a higher ionization energy.
16. Of I and Te, **I** has the smallest atomic radius.
17. Between Br and Kr, **Br** is more chemically reactive.
18. Of Cs and Li, **Li** has a higher electron affinity.
19. The element most likely to lose electrons to form a cation is **Ca**.
20. Tin has **4** valence electrons.
21. Tin has **50** total electrons.
22. Tin has **5** energy levels.
23.
- the measure of how strong an atom attracts electrons when the atom is part of a compound: **electronegativity**
- the amount of energy needed to remove an electron from an atom: **ionization energy**
- elements in a group have similar properties due to these: **valence electrons**
- this law did not work for group 2 elements: **law of octaves**
- this law revealed that the math did not work for all groups of elements, like the halogens: **law of triads**
24.
- the least reactive family of elements: **Noble Gas**
- least reactive metals: **Transition Metal**
- includes many metals like copper, silver, and gold: **Transition Metal**
- always has two valence electrons: **Alkaline Earth Metal**
- most reactive, especially with water: **Alkali Metal**
- the most reactive nonmetals: **Halogen**
Make sure to verify each answer based on your study materials for accuracy.
1. The name of the isotope is **carbon-14**.
2. The atomic mass number is **14**.
3. The number of protons is **6**.
4. The number of neutrons is **8**.
5. The average atomic mass is **25.28 amu**.
6. The correct Lewis dot structure for phosphorus is **not provided**, but typically it has 5 dots.
7. The correct Bohr model for sulfur is **not provided**, but it would include 16 electrons arranged in levels.
8. Sodium has **11** electrons.
9. Sodium has **3** energy levels.
10. Sodium has the sublevels **s** and **p**.
11. The electron configuration for sodium is **1s²2s²2p⁶3s¹**.
12. The shorthand electron configuration for sodium is **[Ne]**.
13. Of Cs and Li, **Cs** has the largest atomic mass.
14. Of Li and Cs, **Li** has a higher electronegativity.
15. Of Te and I, **I** has a higher ionization energy.
16. Of I and Te, **I** has the smallest atomic radius.
17. Between Br and Kr, **Br** is more chemically reactive.
18. Of Cs and Li, **Li** has a higher electron affinity.
19. The element most likely to lose electrons to form a cation is **Ca**.
20. Tin has **4** valence electrons.
21. Tin has **50** total electrons.
22. Tin has **5** energy levels.
23.
- the measure of how strong an atom attracts electrons when the atom is part of a compound: **electronegativity**
- the amount of energy needed to remove an electron from an atom: **ionization energy**
- elements in a group have similar properties due to these: **valence electrons**
- this law did not work for group 2 elements: **law of octaves**
- this law revealed that the math did not work for all groups of elements, like the halogens: **law of triads**
24.
- the least reactive family of elements: **Noble Gas**
- least reactive metals: **Transition Metal**
- includes many metals like copper, silver, and gold: **Transition Metal**
- always has two valence electrons: **Alkaline Earth Metal**
- most reactive, especially with water: **Alkali Metal**
- the most reactive nonmetals: **Halogen**
Make sure to verify each answer based on your study materials for accuracy.
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