Mid-Unit 3 Quiz

Which of the following are found in the nucleus?

• protons and electrons

• protons ONLY

• protons and neutrons

• Electrons only

The element Zinc (Zn) has an atomic number of 30 and an atomic mass of 65 therefor each atom of zinc contains ___________protons, ______________neutrons, and _____________electrons.

• 30,30,35

• 30, 30, 25

• 30, 35, 30

• 35, 30, 30

Atoms of the same element that have different numbers of neutrons are called

• molecules

• ions

• protons

• isotopes

An element with 5 protons, 6 neutrons, and 8 electrons has a mass number of

• 5

• 6

• 8

• 11

The total number of neutrons in the nucleus of any atom is equal to the

• mass number of the atom

• atomic number of the atom

• atomic number minus the mass number

• mass number minus the atomic number

Two different isotopes of an element have the same

• number of neutrons

• number of protons

• mass numbers

• nothing is the same about them

What is the symbol of an atom containing 36 protons?

• Ca
• C
• Ne
• Kr

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

An atom has 8 protons, 8 neutrons, and 8 electrons. What is the atomic mass?

• 8

• 24

• 16

• 10

What is the atomic number?

• 35

• 18

• 17

• 52