AnswersGA-GSE Physical Science ANonmetals

Nonmetals Answers

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1
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Which compound forms a powerful acid and also contains a halogen?

A
H2S
B
HBr
C
Li2O
D
LiBr
2
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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.
3

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
4

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
5

Where are the most reactive nonmetal elements found on the periodic table?

A
at the top of group 17
B
at the bottom of group 17
C
at the top of group 18
D
at the bottom of group 18
6

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.
7

What is the most likely reason that nonmetals are electrical insulators?

A
Since valence shells are mostly empty in nonmetal atoms, the atoms attract and hold any electrons they can in order to fill their valence shells.
B
Since valence shells in nonmetal atoms are almost full, the atoms attract electrons and hold them tightly to fill their valence shells.
C
Since all nonmetals have valence shells that are full, they hold electrons tightly to avoid changing.
D
Since all nonmetals have valence shells that are completely empty, they do not attract or release any electrons.
8

Which describes any substance that shatters or breaks easily?

A
malleable
B
brittle
C
volatile
D
ductile
9

Where are the most reactive nonmetal elements found on the periodic table?

A
at the top of group 17
B
at the bottom of group 17
C
at the top of group 18
D
at the bottom of group 18
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
11

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

A
oxygen (O)
B
sulfur (S)
C
chlorine (Cl)
D
fluorine (F)
12

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.
13

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.
14

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

A
oxygen (O)
B
sulfur (S)
C
chlorine (Cl)
D
fluorine (F)
15

Which element is likely to be the most reactive?

A
bromine (Br)
B
chlorine (Cl)
C
fluorine (F)
D
iodine (I)
16

Which element is likely to be the most reactive?

A
bromine (Br)
B
chlorine (Cl)
C
fluorine (F)
D
iodine (I)
17

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.
18

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

A
H2S
B
HBr
C
Li2O
D
LiBr
19

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.
20

Which describes any substance that shatters or breaks easily?

A
malleable
B
brittle
C
volatile
D
ductile

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