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Understanding Electrons Review

Last updated over 7 years ago

21 questions

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Question 1

1.

The _____ of an element is determined by the NUMBER of PROTONS in its atom.

Question 2

2.

The number of protons equals the _____________.

Question 3

3.

Electrons are found flying around in the _________.

Question 4

4.

Electrons have a ___________ charge.

Question 5

5.

Electrons have _______ mass than protons and neutrons.

Question 6

6.

Electrons are arranged around the nucleus into ____________

Question 7

7.

Question 8

8.

Question 9

9.

Question 10

10.

___________ electrons are the electrons in the outer energy level.

Question 11

11.

Valence electrons determine an element's ___________.

Question 12

12.

Question 13

13.

Question 14

14.

Question 15

15.

Question 16

16.

Question 17

17.

Question 18

18.

Question 19

19.

Question 20

20.

Question 21

21.

the 1st Energy Level holds up to

8 electrons

4 electrons

2 electrons

18 electrons

the 2nd Energy Level holds up to

8 electrons

4 electrons

2 electrons

18 electrons

the 2nd Energy Level holds up to

8 electrons

4 electrons

2 electrons

Elements in the same period have the same

number of valence electrons

number of energy levels

chemical properties

Elements in the same group have the same

number of valence electrons

number of energy levels

luster

Carbon has _____ valence electrons.

Krypton has _____ valence electrons.

Calcium has _____ valence electrons.

Aluminum has _____ valence electrons.

Nitrogen has _____ valence electrons.

Sulfur has _____ valence electrons.

Iodine has _____ valence electrons.

Oxygen has _____ valence electrons.