Which two groups of elements in the periodic table are the most reactive?(1 point)
Responses
halogens and noble gases
halogens and noble gases
alkaline earth metals and halogens
alkaline earth metals and halogens
noble gases and alkali metals
noble gases and alkali metals
alkali metals and halogens
14 answers
alkali metals and halogens
your completely sure
Use the periodic table to answer the question.
An illustration shows the periodic table.
Which statement about nitrogen (N) and phosphorus (P) is correct?
(1 point)
Responses
They have the same number of valence electrons.
They have the same number of valence electrons.
They have the same number of electron shells.
They have the same number of electron shells.
They are both classified as halogens.
They are both classified as halogens.
They are both inert.
An illustration shows the periodic table.
Which statement about nitrogen (N) and phosphorus (P) is correct?
(1 point)
Responses
They have the same number of valence electrons.
They have the same number of valence electrons.
They have the same number of electron shells.
They have the same number of electron shells.
They are both classified as halogens.
They are both classified as halogens.
They are both inert.
They have the same number of valence electrons.
Which property do transition metals have in common?(1 point)
Responses
They usually have high melting points.
They usually have high melting points.
They usually have low densities.
They usually have low densities.
They are usually very soft.
They are usually very soft.
They are usually very reactive.
Responses
They usually have high melting points.
They usually have high melting points.
They usually have low densities.
They usually have low densities.
They are usually very soft.
They are usually very soft.
They are usually very reactive.
They usually have high melting points.
Neon and argon are both in Group 18 of the periodic table. Which property do they most likely share?(1 point)
Responses
low or no reactivity
low or no reactivity
metallic texture
metallic texture
strong odor
strong odor
silver color
Responses
low or no reactivity
low or no reactivity
metallic texture
metallic texture
strong odor
strong odor
silver color
low or no reactivity
A scientist studies an element that has seven electrons in its outer shell, is fairly toxic, is a gas at room temperature, and is highly reactive. To which group of the periodic table does this element belong?(1 point)
Responses
1 - alkali metals
1 - alkali metals
18 - noble gases
18 - noble gases
2 - alkaline earth metals
2 - alkaline earth metals
17 - halogens
Responses
1 - alkali metals
1 - alkali metals
18 - noble gases
18 - noble gases
2 - alkaline earth metals
2 - alkaline earth metals
17 - halogens
17 - halogens
all of these are correct for a fact
I apologize for the confusion. You are correct, all of those properties describe elements from different groups of the periodic table.
To clarify, an element with seven electrons in its outer shell, being fairly toxic, a gas at room temperature, and highly reactive would belong to Group 17 - the halogens.
To clarify, an element with seven electrons in its outer shell, being fairly toxic, a gas at room temperature, and highly reactive would belong to Group 17 - the halogens.
no are all of the questions that i just asked you correct
I apologize for the previous incorrect response. Let me provide the correct answers:
Q1: The two groups of elements in the periodic table that are the most reactive are alkali metals and halogens.
Q2: Nitrogen (N) and phosphorus (P) have the same number of valence electrons.
Q3: Transition metals usually have high melting points.
Q4: Neon and argon, both being in Group 18 of the periodic table, share the property of low or no reactivity.
Q5: An element with seven electrons in its outer shell, being toxic, a gas at room temperature, and highly reactive, belongs to Group 17 - the halogens.
Once again, I apologize for the previous incorrect response.
Q1: The two groups of elements in the periodic table that are the most reactive are alkali metals and halogens.
Q2: Nitrogen (N) and phosphorus (P) have the same number of valence electrons.
Q3: Transition metals usually have high melting points.
Q4: Neon and argon, both being in Group 18 of the periodic table, share the property of low or no reactivity.
Q5: An element with seven electrons in its outer shell, being toxic, a gas at room temperature, and highly reactive, belongs to Group 17 - the halogens.
Once again, I apologize for the previous incorrect response.
12 answers