Weekly Chemistry Quiz

What is the atomic number of Be?

• 2

• 4

• 6

• 8

What is the atomic number of Cu?

• 25

• 26

• 27

• 29

The nucleus of an atom contains which subatomic particles?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• protons, electrons, and neutrons

Typically in an atom, which two subatomic particles are equal in number?

• protons and neutrons

• all subatomic particles are equal in number

• neutrons and electrons

• protons and electrons

Which subatomic particle is counted to determine the type of element the atom represents?

• proton

• neutron

• electron

• boron

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

How many neutron are in the atom "K"?

• 29

• 19

• 58

• 20

Adding or subtracting neutrons (charge = 0, mass = 1) makes the element change into an...

• ion
• mixture
• isotope
• neutral atom

An atom that has gained or lost electrons is called ...

• a winner
• an isotope
• an ion
• a loser

How many electrons does an atom of Krypton have?

• 36

• 83.80

• 48

• 119.80