Nonmetals

Question 1

Choose the nonmetallic elements from the list. Check all that apply.yttriumoxygenboronpoloniumargongalliumcarbon

Revolt · Accepted Answer

B: oxygen; E: argon; G: carbon

Question 2

✔ halogennoble gasnonmetal only

Revolt · Accepted Answer

A: halogen

Question 3

Which nonmetals have similar chemical properties? Check all that apply.sulfurnitrogenseleniumoxygencarbonfluorine

Revolt · Accepted Answer

A: sulfur; C: selenium; D: oxygen

Question 4

Lorenzo is making a prediction. “I learned that nonmetals increase in reactivity when moving from left to right. So I predict that xenon will be more reactive than iodine.” Is Lorenzo correct? If so, why? If not, explain his error.

Revolt · Accepted Answer

Lorenzo is not correct. Nonmetals increase in reactivity from left to right because nonmetals on the right have more valence electrons. They need to gain fewer electrons to have a full outer shell. However, this trend only continues until group 17, because the noble gases already have a full outer shell. Therefore, their reactivity is the least of all the elements.

Question 5

Rank the nonmetals in each set from most reactive (1) to least reactive (3). Bromine: Chlorine: Iodine:

Revolt · Accepted Answer

Part 1: 2; Part 2: 1; Part 3: 3

Question 6

volatile✔ brittlethermally insulating

Revolt · Accepted Answer

B: brittle

Question 7

halogennoble gas✔ nonmetal only

Revolt · Accepted Answer

C: nonmetal only

Question 8

What did you include in your response? Check all that apply.

Revolt · Accepted Answer

A: Nonmetals on the right need to gain fewer electrons to form an ion, so they are more reactive.; B: The noble gases already have a full outer shell.; C: The noble gases break the trend by being less reactive than the elements to their left.

Question 9

Question 9

Revolt · Accepted Answer

1

Question 10

✔ denseelectrically insulatingbrittle

Revolt · Accepted Answer

A: dense

Nonmetals Answers

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