Atoms Quiz

Which of the following is a negatively charged subatomic particle?

• Electron

• Proton

• Neutron

• Quark

All matter is made of what?

• energy 

• atoms 

• electrons 

• compounds 

The particles that are found in the nucleus of an atom are

• neutrons and electrons

• electrons only

• protons and neutrons

• protons and electrons

The atomic number of an elements is the total number of which particles in the nucleus?

• neutrons

• protons

• electrons

• protons and electrons

What is the unit used to measure weighted average atomic mass?

• amu

• gram

• angstrom

• nanogrm

An element has an atomic number of 76.  The number of protons and electrons in a neutral atom of the element are

• 152 p+, 76 e-

• 76 p+, 0 e-

• 38 p+, 38 e-

• 76 p+, 76 e-

Contributes basically no mass to an atom.

• protons

• neutrons

• electrons

• protons and neutrons

An atom has 5 protons, 7 neutrons and 5 electrons. What is the mass number of the atom?

• 5

• 7

• 2

• 12

In a neutral atom, what needs to be true?

• The number of protons and neutrons are the same

• The number of protons and electrons are the same

• The number of neutrons and electrons are the same

• None of the above

How many protons are in this element?

• 79

• 196

• 117

• Cannot be determined