The atomic number identifies the number of __________.

• protons

• neutrons

• atoms

• electrons

Subatomic particles that have a negative charge

• electrons

• atoms

• protons

• neutrons

In an atom, the number of electrons is equal to the number of ____________.

• croutons

• protons

• electrons

• neutrons

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

Which two particles are oppositely charged & attracted to each other?

• Protons & Electrons

• Protons & Neutrons

• Electrons & Protons

Calculation used to find the number of neutrons in an atom

• Mass Number - Atomic Number

• Atomic Number - Mass Number

• Atomic Mass - Electrons

• none of these

The center of an atom is known as the

• nucleus

• electron cloud

• neutron cloud

• mass circle

Protons have this type of charge

• positive
• negative
• neutral - no charge

What does the nucleus of an atom contain?

• Electrons and neutrons

• Protons and neutrons

• Neutrinos and positrons

• Electrons and megatrons

Tags

NGSS.MS-PS1-1

An atom with atomic number 6 would have how many protons?

• 6
• 12
• 3
• cannot be determined