Chemistry Quiz

What is the charge of a proton?

• Positive

• Negative

• Neutral

• Variable

What is the charge of an electron?

• Positive

• Negative

• Neutral

• Variable

Which subatomic particle determines the chemical properties of an element?

• Proton

• Neutron

• Electron

• Nucleus

The number of protons in the nucleus of an atom is known as its:

• Atomic mass

• Atomic number

• Mass number

• Isotope number

What is the total number of electrons in a neutral atom of chlorine-35?

• 17

• 18

• 35

• 52

Which of the following subatomic particles has the least mass?

• Proton

• Neutron

• Electron

• Isotope

What is the maximum number of electrons that can occupy the second shell in an atom?

• 2

• 4

• 8

• 16

An atom of carbon-14 differs from an atom of carbon-12 in:

• Atomic number

• Number of protons

• Number of neutrons

• Number of electrons

How many electrons are present in the outermost shell of a sodium atom?

• 1

• 2

• 7

• 8

Which subatomic particle determines the isotope of an element?

• Proton

• Neutron

• Electron

• Nucleus