Structure of an Atom

Question 1

What is an atom?

Answer 1

Basic building blocks of matter, and cannot be chemically divided by any means.

Question 2

Atoms are composed of what type of particles?

Answer 2

Protons, neutrons, and electrons.

Question 3

What particles of an atom are in the nucleus?

Answer 3

Both protons and neutrons.

Question 4

What is the charge of protons?

Answer 4

Positive

Question 5

What is the charge of electrons?

Answer 5

Negative

Question 6

What is the charge of neutrons?

Answer 6

Neutral

Question 7

What is the nucleus?

Answer 7

Central core of an atom containing protons and neutrons.

Question 8

What is the atomic number?

Answer 8

The number of protons in the nucleus of an atom

Question 9

What is the atomic mass?

Answer 9

Total number of particles in the nucleus of an atom

Question 10

How to solve for neutrons?

Answer 10

Round up the atomic mass and subtract by the atomic number (protons)

Question 11

Solve for the number of neutrons in Potassium (K)

Answer 11

20

Question 12

Solve for the number of neutrons for Zinc (Zn)

Answer 12

35

Question 13

Number of electrons in Silver (Ag)

Answer 13

47

Question 14

Solve for the number of protons for Krypton (Kr)

Answer 14

36

Question 15

Solve for the number of electrons in Rhodium (Rh)

Answer 15

45

Question 16

Solve for the number of electrons in Lithium

Answer 16

3

Question 17

What is the number of protons, electrons and neutrons in Helium?

Answer 17

Two protons, neutrons and electrons each.

Question 18

What is the number of protons, electrons and neutrons in Magnesium?

Answer 18

12 protons, electrons and neutrons each.

Question 19

What is the number of protons, neutrons and electrons in Zinc

Answer 19

30 electrons and protons. 35 neutrons.

Question 20

What is the number of protons, neutrons and electrons in Bromine?

Answer 20

35 protons, 35 electrons, 45 neutrons