Atom Basics

Sodium has an atomic number of 11, how many protons does this atom have?

• 22
• 11
• 12
• 2

The following element key shows how many protons?

• 16
• 15.999
• Oxygen
• 8

Protons are equal to:

• Atomic Mass
• Number of neutrons
• Atomic Number
• All of the subatomic particles

A proton is a _____ charged particle.

• Negatively
• Positively

The atoms of any given element ____ have the same number of protons.

• sometimes
• always
• never

Where are protons located in the atom?

• orbitals
• nucleus
• rings
• positive

How many protons are in Gold

• 79

• 197

• 118

• 276

In a stable atom, the atomic number is equal to...

• neutrons
• electrons
• atomic mass
• what is a stable atom?

The diagram shows you a Helium symbol in periodic table. What is electron number of Helium?

• 6

• 4

• 2

Subatomic particle with negative charge is

• Proton

• Electron

• Neutron