Quiz - 3.4 Neutron

Which of the following can be defined as one-twelfth the mass of a carbon-12 atom?

• Chemical valency

• An atomic mass unit

• A molecular mass unit

• None of these

Carbon atoms generally have _____ neutrons.

• 1

• 5

• 6

• 3

Tags

NGSS.MS-PS1-1

The mass of a neutron is slightly larger than the mass of a proton.

• True

• False

Where are neutrons located?

• alone outside of the nucleus

• either inside or outside of the nucleus

• alone in the nucleus of the atom

• in the nucleus of the atom, along with protons

Neutrons consist of two down quarks and ____ up quark(s).

• 2

• 1

• 0

• 3

Atoms that make up an element will always have the same number of neutrons.

• True

• False

The three basic subatomic particles are protons, electrons, and neutrons. Which of the following particles has the smallest mass?

• electrons

• protons

• neutrons

• none as they all have the same mass.

What element consists mostly of atoms that have no neutrons?

• oxygen

• nitrogen

• hydrogen

• helium

Neutrons are found in all atoms except some atoms of _____.

• hydrogen

• helium

• neon

• oxygen

All atoms of a given element must have the same number of neutrons.

• True

• False