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Nonmetals Answers

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Of these nonmetals, which one is likely to be the least reactive?

A
oxygen (O)
B
sulfur (S)
C
chlorine (Cl)
D
fluorine (F)
2
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Which element is likely to be the most reactive?

A
bromine (Br)
B
chlorine (Cl)
C
fluorine (F)
D
iodine (I)
3

Krypton is named after the Greek word that means “secret.” Which explains why krypton was most likely given this name?

A
Krypton is a halogen, so it is a secret element because it is always part of a compound and is difficult to find by itself.
B
Krypton is a halogen, so it should be kept secret because it is so reactive and toxic.
C
Krypton is a noble gas, so it was difficult for chemists to find it, as though it was a secret.
D
Krypton is a noble gas, so it secretly bonds with every type of element without showing it.
4

Looking at the same nonmetal group on the periodic table, how does the reactivity of an element in period 2 compare to the reactivity of an element in period 4?

A
The period 2 element would be more reactive because the attractive force of protons is stronger when there are fewer neutrons interfering.
B
The period 2 element would be more reactive because the attractive force of protons is stronger when electrons are attracted to a closer electron shell.
C
The period 4 element would be more reactive because the attractive force of protons is stronger when there are more neutrons helping.
D
The period 4 element would be more reactive because the attractive force of protons is stronger when electrons are attracted to a farther electron shell.
5

On the periodic table, the elements known as noble gases are all found in

A
period 2.
B
period 6.
C
group 15.
D
group 18.
6

Which statement best explains why radon and krypton do not bond easily with other elements?

A
They have many electron shells, so their protons do not attract electrons strongly.
B
They have eight electrons in their valence shells, so they are stable without gaining or losing electrons.
C
Their valence shells are empty, so they do not need to bond with other elements to be more stable.
D
Their valence shells are so close to the protons in the nucleus that bonding cannot happen like in other elements.
7

Which compound forms a powerful acid and also contains a halogen?

A
H2S
B
HBr
C
Li2O
D
LiBr
8

When looking across the periodic table from left to right, which of these groups are the first to contain nonmetals?

A
group 2
B
group 7
C
group 14
D
group 18
9

What property do all of the group 18 elements have that makes them stand out from other elements?

A
They are the only nonmetals that are liquid at room temperature.
B
They are the only nonmetals that are solid at room temperature.
C
They are very likely to bond with any element, whether it is metallic or not.
D
They are very unlikely to bond with any element, whether it is metallic or not.
10

A student is working with four different solid substances: sodium (Na), calcium (Ca), copper (Cu), and iodine (I). Which substance is most likely to break easily into many smaller pieces?

A
sodium
B
calcium
C
copper
D
iodine

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