Atomic Structure

What is an atom’s nucleus made of?

• protons and electrons

• protons only

• protons and neutrons

• neutrons only

Tags

NGSS.HS-PS1-8

How many electrons will a neutral atom of carbon have if its nucleus has 6 protons and 8 neutrons?

• 2

• 6

• 8

• 14

Tags

NGSS.HS-PS1-1

An element with 5 protons, 6 neutrons, and 8 electrons has an atomic number of

• 5

• 6

• 8

• 11

Tags

NGSS.MS-PS1-1

An element with 5 protons, 6 neutrons, and 8 electrons has a mass number of

• 5

• 6

• 8

• 11

Tags

NGSS.MS-PS1-1

The farther an electron is from the nucleus, the more _________ it has.

• charge

• energy

• mass

• size

Atoms of the same element that have different numbers of neutrons are called

• molecules

• ions

• protons

• isotopes

Tags

NGSS.HS-PS1-8

Which particles determine the atomic number of an element?

• Protons only

• Neutrons and protons

• Neutrons only

• Protons and electrons

How many protons does Carbon (C) have?

• 20

• 10

• 6

• 5

Tags

NGSS.MS-PS1-1

What is the symbol for Potassium?

• Po

• K

• P

• Pb

The total number of neutrons in the nucleus of any atom is equal to its

• mass number of the atom

• atomic number of the atom

• atomic number minus the mass number

• mass number minus the atomic number