Atom review

An atom is neutral because

• Unequal number of protons and electrons
• Equal number of neutrons and electrons
• Equal number of electrons and positrons
• Equal number of protons and electrons

A(n) ______is the smallest particle of an element.

• atom
• molecule
• cell
• nucleus

A particle that moves around the nucleus is a

• Electron
• Photon
• Neutron
• Proton

The particles with no charge in an atom are the _______.

• positrons
• electrons
• neutrons
• protons

Which two types of atomic particles carry an electrical charge?

• Neutrons and protons
• Neutrons and electrons
• Positrons and neutrons
• Protons and electrons

an atom with atomic number 6 would have how many protons

• 4
• 6
• 10
• 8

how many electrons does boron have?

• 5
• 7
• 6
• 4

Protons, neutrons, and electrons are called____Particles

• subatomic
• cosmic
• atomic
• microscopic

The electrons are in the electron ___

• cloud
• sphere
• orbit
• field

Electrons can be found..

• in the mitochondria
• in the cytoplasm
• in the electron cloud

• in the nucleus