Atomic Model

In order for an atom to be neutral what has to be true?

• The atom has more protons than neutrons
• The atom has more neutrons than protons
• The atom has the same number of protons and neutrons
• The atom has the same number of protons and electrons

Which subatomic particle has a negative charge in the atom?

• proton
• neutron
• electron
• quark

Tags

NGSS.MS-PS2-3

Most of the mass in an atom is made up of _____________________?

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

Tags

NGSS.MS-PS1-1

The atomic number represents the identity of the ________________.

• mass of the atom
• element
• electrons
• isotopes

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the electrical charge of a proton?

• 1+
• 1-
• neutral
• 2-

Tags

NGSS.HS-PS3-5

Electrons have virtually no mass (weight).

• True
• False

Tags

NGSS.MS-PS1-1

Which is an electron?

• A
• B
• C

Tags

NGSS.MS-PS1-1

Which is a proton?

• A
• B
• C

Tags

NGSS.MS-PS1-1

Which is a neutron?

• A
• B
• C

Tags

NGSS.MS-PS1-1

What is the mass of a proton?

• about 1/1800th of an amu
• 0 amu
• 1 amu
• 2/3 amu

Tags

NGSS.MS-PS1-1