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Foundational Chemistry part 2 Concept Review

Last updated over 8 years ago

10 Nsɛmmisa

Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

A review assignment looking Foundational Chemistry concepts learned thus far

1

1

1

1

1

1

1

1

1

1

Asemmisa {{asɛmmisaAhyɛnsode}}

1.

How many neutrons do carbon-12 have, respectively?
Isotopes

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2

3

4

5

6

7

8

9

10

11

12

13

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

How many neutrons do carbon-13 have, respectively?
Isotopes

1

2

3

4

5

6

7

8

9

10

11

12

13

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

An atom may give, take, or share electrons with another atom to achieve a full valence shell, the most stable
electron configuration. Looking at this figure, how many electrons do elements in group 1 need to lose in
order to achieve a stable electron configuration?

1

2

3

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5

6

7

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9

10

11

12

13

14

15

16

17

18

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

How many electrons do elements in groups 14
need to gain to achieve a stable configuration?

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Asemmisa {{asɛmmisaAhyɛnsode}}

5.

How many electrons do elements in groups 17
need to gain to achieve a stable configuration?

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Asemmisa {{asɛmmisaAhyɛnsode}}

6.

If xenon has an atomic number of 54 and a mass
number of 108, how many neutrons does it have?

54

27

100

108

Asemmisa {{asɛmmisaAhyɛnsode}}

7.

Atoms that vary in the number of neutrons found in
their nuclei are called ________.

ions

neutrons

neutral atoms

isotopes

Asemmisa {{asɛmmisaAhyɛnsode}}

8.

Which of the following statements is not true

Water is polar.

Water stabilizes temperature

Water is essential for life

Water is the most abundant molecule in the

Earth’s atmosphere.