Atomic Structure

What is the charge on a proton?

• positive 1

• 0

• negative 1

The smallest subatomic particle is the

• proton

• neutron

• electron

• decepticon

True or False - Protons and Neutrons have about the same mass.

• True - They have about the same mass

• False - They do not have about the same mass

The mass of this particle is so small that it is not counted.

• proton

• electron

• neutron

• quark

What is the smallest unit of matter? It is composed of protons and neutrons, held together in the nucleus, and electrons around the nucleus in different electron orbitals, which form an electron cloud.

• cell

• nucleus

• atom

• electron

"B" is the number of ___ in the atom's ___

• Protons and electrons, nucleus

• Protons and neutrons, shells

• Protons and neutrons, nucleus

• Protons and electrons, shells

"B" is the element's what?

• Atomic mass

• Mass number

• Atomic number

Structure C is a(n)

• Proton

• Neutron

• Electron

All matter is made of 

• energy 
• atoms 
• air
• chemistry

What two particles make up the ATOMIC MASS of an element? 

• Protons and Neutrons

• Protons and Electrons

• Electrons and Nucleus

• Electrons and Neutrons