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Flashcards in Chemistry Deck (23):
1

How do you find the number of neutrons?

Mass number-atomic number

2

How many electrons can the first she'll fit?

2e-

3

Shell 2 can hold a max of...

8e-

4

Shell three can hold a max of...

8e-

5

Shell four can hold a max of....

2e-

6

How many natural elements are there?

92

7

The columns going down in the periodic table

Groups

8

The groups going across the periodic table

Period

9

What is an electric charge on an atom called?

Negative (e-)

10

Two or more elements or compounds not chemically joined?

Mixture

11

The smallest whole particle of an element

Atom

12

An atomic particle with no charge

Neutron

13

These partials spin around the nucleus of an atom?

Electron

14

The number of protons in the atom nucleus give you

The atomic number

15

When neutrons are combined with protons you get the

Atomic mass

16

Electrons are arranged in layers known as...

Shells

17

Two or more elements chemically joined

Compound

18

The charge on a proton

Positive

19

An atom is not made of matter, rather it's made of

Energy

20

What are cations?

Positively charged ions

21

What are anions?

Atoms that have gained electrons. Since they now have more electrons than protons, anions have a negative charge.

22

What is an ion?

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

23

Ionic bonds form when..

A metal and a non metal combine and form a crystal