# Atomic Structure Part 2 Question Preview (ID: 1255)

### Physical Science 12 B Group: Sub Atomic Particles. Answers? Play games to get them!

In the nucleus of an atom, there are 28 protons and 32 neutrons. What are the atomic number and mass number of this element?
a) 50, 32
b) 28, 4
c) 32, 28
d) 28, 50

If an atom has 50 protons and 60 neutrons, what is its mass number?
a) 110
b) 10
c) 50
d) 60

If an atom of an element has a mass number of 18 and 10 neutrons in its nucleus, what is the atomic number of that element?
a) 28
b) 8
c) 18
d) 10

If an atom of X element has a mass number of 90 and atomic number of 38, how many neutrons are in its nucleus?
a) 128
b) 52
c) 90
d) 38

What is the relative charge of the nucleus of any atom?
a) Neutral
b) Positive
c) Negative
d) None of the above

What is the relative charge of a neutron of any atom?
a) positive
b) negative
c) neutral
d) none of the above

What are all the possible sub levels at 3rd energy level?
a) s and p
b) s, p, and d
c) s, p, and f
d) s, p, d, and f

What is the maximum number of electrons that each orbital can hold?
a) 1
b) 2
c) 8
d) infinite

Which of the following group of properties is most suitable to compare protons, electrons, and neutrons?
a) charge, mass, and shape.
b) mass, and density.
c) mass, location, and relative charge.
d) volume, and location.

What is the relationship between the mass number and the atomic number?
a) Mass number - Number of neutrons = Atomic number
b) Atomic number + Mass number = Number of neutrons
c) Mass number + Number of neutrons = Atomic number
d) Atomic number + Number of neutrons = Mass number

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