TH/CH - Structure of an atom

A proton has this charge

• negative
• positive
• neutral

An electron has this charge

• positive
• negative
• neutral

Tags

NGSS.MS-PS2-3

A neutron has this charge

• negative
• positive
• neutral

Which statement best describes an electron?

• Smaller mass than a proton and a negative charge
• Smaller mass than a proton and a positive charge
• Greater mass than a proton and a negative charge
• Greater mass than a proton and a positive charge

Tags

NGSS.MS-PS2-3

In an atom, what is the number of protons equal to?

• The number of electrons.
• The number of neutrons.
• The number of molecules.
• The number of nuclei.

Tags

NGSS.MS-PS1-1

Which two particles make up the nucleus of an atom?

• Protons and Electrons
• Protons and Neutrons
• Molecules and Compounds
• Neutrons and Electrons

Tags

NGSS.MS-PS1-1

What part of the atom is the arrow pointing to?

• nucleus
• proton
• electron shell
• electron

Tags

NGSS.HS-PS1-8