Atoms and Subatomic Particles Chart PDF

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Summary

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Description

Element Name Carbon

Element Symbol C

Atomic Number 6

Mass number 12

# of protons (p+) 6

# electrons (e-) 6

# neutrons (n0) 6

Neon

Ne

10

20

10

10

10

Hydrogen

H

1

1

1

1

0

Lithium

Li

3

7

3

3

4

Helium

He

2

4

2

2

2

Calcium

Ca

20

40

20

20

20

Sodium

Na

11

23

11

11

12

Argon

Ar

18

40

18

18

22

Polonium

Po

84

209

84

84

125

Thorium

Th

90

232

90

90

142

Sodium

Na

11

23

11

11

12

Boron

B

5

11

5

5

6

Chlorine

Cl

17

35

17

17

18

Potassium

K

19

40

19

19

21

SNC 1D Atoms and Subatomic Particles Chart Fill in the table

Check your understanding: 1) Do all atoms of the same element contain the same number of protons? Explain. Yes.

2) Which of the following statements are correct? Rewrite the incorrect statements to make them correct a) The atomic number always equals the number of protons.

b) The atomic mass can be smaller than the atomic number.: The atomic mass can not be smaller than the atomic number. c) The number of protons is always equal to the number of neutrons in an atom.: The number of protons is not equal to the number of neutrons in an atom. d) The number of protons is always equal to the number of electrons in an atom.

e) The protons and electrons are found in the nucleus of an atom.

f) If the number of protons in an atom were changed, it would be a different element....