Atomic Structure

Which atomic particle has a negative charge?

• proton
• neutron
• electron
• all of the above

Tags

NGSS.MS-PS2-3

Which of these phrases best describes an atom?

• a positive nucleus surrounded by a hard negative shell
• a positive nucleus surrounded by a cloud of negative charges
• a hard sphere with postive and negative charges on the outside
• a negative nucleus surrounded by protons and neutrons

Tags

NGSS.MS-PS1-1

Which of the following particles has the smallest mass?

• neutron
• proton
• nucleus
• electron

The positively charged parts of an atom are the

• protons
• electron clouds
• neutrons
• electrons

Tags

NGSS.MS-PS1-1

Matter that is made up on only one type of atom is called

• a compound
• a subatomic particle
• an element
• water

The term "neutral" means

• having only a little bit of charge
• having a positive charge
• having a negative charge
• having no charge at all

Tags

NGSS.MS-PS2-3

Atoms are neutral because they have the same number of

• protons and neutrons
• protons and electrons
• electrons and neutrons

The center of an atom is known as the

• nucleus

• electron cloud

• neutron cloud

• mass circle

Tags

NGSS.HS-PS1-8

What are the 3 subatomic particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

Neutrons have this type of charge

• positive
• negative
• neutral - no charge