IPC - Structure of the Atom

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

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

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

• electrons
• neutrons
• protons
• protons and neutrons

Tags

NGSS.MS-PS1-1

The positively charged particles of an atom are the ________.

• electrons
• protons
• neutrons
• protons & neutrons

Tags

NGSS.MS-PS1-1

The negatively charged particles of an atom are the ______.

• electrons
• protons
• neutrons
• protons & neutrons

Tags

NGSS.MS-PS1-1

What number indicates an electron?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS2-3

What number indicates the nucleus?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-8

Which element has 31 protons ?

• Gallium 
• Germanium
• Gadolinium
• Polonium

Tags

NGSS.MS-PS1-1

What is the mass number?

• the number of protons
• the sum of the number of protons and the number of neutrons in the nucleus of an atom 
• the number of electrons
• the number of neutrons

Tags

NGSS.HS-PS1-8

What is the atomic number?

• number of protons
• number of neutrons