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Question 3

Video Question #3 The attractive interaction of negatively charged electrons pulling toward positively charged protons is known as what?

a
electromagnetic activity
b
electric force
c
gravity
Question 4
Video Question #4 Strong force occurs because neutrons work to keep protons in place inside the nucleus of an atom. This strong force makes it so the protons do not push each other out of the atom by their repulsion of the positive forces close together.

True
False
Question 5
Match the following terms with the correct definitions.

Column A
1.
atomic number:
atomic number
2.
electron:
electron
3.
electron cloud:
electron cloud
4.
mass number:
mass number
5.
neutron:
neutron
6.
nucleus:
nucleus
7.
proton:
proton
Column B
a.a positively charged subatomic particle
b.a neutral subatomic particle
c.a negatively charged subatomic particle that is located outside of the nucleus
d.the area of the atom outside of the nucleus
e.the center of the atom, composed of protons and neutrons
f.the sum of the protons and neutrons in an atom
g.indicates the number of protons in an atom of an element
Question 6
To fulfill the octet rule on the Periodic Table, the first energy level (period/row) can hold ____ electrons and _____ on the second energy level.

a
eight, eight
b
two, six
c
two, two
d
two, eight
Question 7
Math the following terms with the correct definition.

Column A
1.
atom:
atom
2.
element:
element
3.
ion:
ion
4.
mass number:
mass number
5.
stable:
stable
Column B
a.a pure substance that cannot be changed into simpler substances through chemical or physical means
b.in atoms, the condition in which a nucleus is unlikely to undergo decay
c.the basic unit of a chemical element
d.a charged particle that results when the number of protons and number of electrons differ
e.the sum of the protons and neutrons that make up the nucleus of an atom
Watch the video and answer the following questions

Question 8
Video Question #1 How are the elements arranged on the Periodic Table to show patterns of energy levels or orbitals, valence electrons, families, and oxidation states?

a
lightest to heaviest
b
periods and groups
c
alphabetical order
Question 9
Video Question #2 Are the lighter elements, or elements with low mass numbers, found at the top or the bottom of the periodic table?

a
top
b
bottom
Question 10
Video Question #3 What do elements in the groups 1A through 8A have in common? (Choose all that apply)

a
they were all discovered around the same time
b
they all have the same number of energy shells
c
they all have the same number of valence electrons
d
they all have similar properties
e
they all will have the same oxidation states for the ions they form
Watch the video and complete the following matching vocabulary

Question 11
Video Question: What are the four major elements in the body? (Choose all that apply)

a
Sodium
b
Carbon
c
Phosphorous
d
Hydrogen
e
Oxygen
f
Nitrogen
Question 12
Match the following terms with the correct definition

Column A
1.
bond:
bond
2.
chemical formula:
chemical formula
3.
chemical compound:
chemical compound
4.
crystalline structure:
crystalline structure
5.
covalent bond:
covalent bond
6.
ionic bond:
ionic bond
7.
metallic bond:
metallic bond
8.
molecular model:
molecular model
Column B
a.three-dimensional representation of a molecule
b.the result of a chemical reaction with a force that holds atoms together to form molecules
c.a chemical bond that involves the sharing of electron pairs between 2 nonmetal atoms
d.chemical substance that consists of two or more chemical elements that bond together
e.structure of ion, molecules, or atoms that arrange in a three-dimensional pattern
f.a type of intermolecular bond based on the attractive forces between charged ions (thus involving a nonmetal and metal)
g.formula that gives information about the proportion of atoms in a molecule
h.a force that holds 2 metal atoms together

1 answer

Here are the answers to your questions:

Question 3
The attractive interaction of negatively charged electrons pulling toward positively charged protons is known as what?
b. electric force

Question 4
Strong force occurs because neutrons work to keep protons in place inside the nucleus of an atom. This strong force makes it so the protons do not push each other out of the atom by their repulsion of the positive forces close together.
True

Question 5
Match the following terms with the correct definitions.

  1. atomic number: g. indicates the number of protons in an atom of an element
  2. electron: c. a negatively charged subatomic particle that is located outside of the nucleus
  3. electron cloud: d. the area of the atom outside of the nucleus
  4. mass number: f. the sum of the protons and neutrons in an atom
  5. neutron: b. a neutral subatomic particle
  6. nucleus: e. the center of the atom, composed of protons and neutrons
  7. proton: a. a positively charged subatomic particle

Question 6
To fulfill the octet rule on the Periodic Table, the first energy level (period/row) can hold ____ electrons and _____ on the second energy level.
d. two, eight

Question 7
Match the following terms with the correct definition.

  1. atom: c. the basic unit of a chemical element
  2. element: a. a pure substance that cannot be changed into simpler substances through chemical or physical means
  3. ion: d. a charged particle that results when the number of protons and number of electrons differ
  4. mass number: e. the sum of the protons and neutrons that make up the nucleus of an atom
  5. stable: b. in atoms, the condition in which a nucleus is unlikely to undergo decay

Question 8
Video Question #1: How are the elements arranged on the Periodic Table to show patterns of energy levels or orbitals, valence electrons, families, and oxidation states?
b. periods and groups

Question 9
Video Question #2: Are the lighter elements, or elements with low mass numbers, found at the top or the bottom of the periodic table?
a. top

Question 10
Video Question #3: What do elements in the groups 1A through 8A have in common? (Choose all that apply)
c. they all have the same number of valence electrons
d. they all have similar properties
e. they all will have the same oxidation states for the ions they form

Question 11
Video Question: What are the four major elements in the body? (Choose all that apply)
b. Carbon
d. Hydrogen
e. Oxygen
f. Nitrogen

Question 12
Match the following terms with the correct definition.

  1. bond: b. the result of a chemical reaction with a force that holds atoms together to form molecules
  2. chemical formula: g. formula that gives information about the proportion of atoms in a molecule
  3. chemical compound: d. chemical substance that consists of two or more chemical elements that bond together
  4. crystalline structure: e. structure of ion, molecules, or atoms that arrange in a three-dimensional pattern
  5. covalent bond: c. a chemical bond that involves the sharing of electron pairs between 2 nonmetal atoms
  6. ionic bond: f. a type of intermolecular bond based on the attractive forces between charged ions (thus involving a nonmetal and metal)
  7. metallic bond: h. a force that holds 2 metal atoms together
  8. molecular model: a. three-dimensional representation of a molecule

If you have any further questions or need clarification, feel free to ask!