Quiz - 3.5 Electrons

Like protons and neutrons, electrons consist of smaller particles.

• True

• False

How does the mass of an electron compare to the mass of a proton or neutron?

• The mass of the electron is about the same as that of a proton or neutron.

• The mass of the electron is about 1/2000^th that of a proton or neutron.

• The mass of the electron is half that of a proton or neutron.

• The mass of the electron is about 1/100^th that of a proton or neutron.

The mass of one mole of electrons is 9.11×10−31 𝑘𝑔.

• True

• False

______, which are positively charged, are located inside the nucleus.

• Neutrons

• Protons

• Electrons

• Quarks

Electrons have an electric charge of +1, which is opposite but equal to the charge of a proton, which is -1.

• True

• False

What makes an atom electrically neutral?

• Protons and electrons are replaced by neutrons.

• There are far more neutrons than electrons.

• There are many more electrons than either protons or neutrons.

• There are equal numbers of protons and electrons.

Tags

NGSS.HS-PS1-7

Electrons are usually found in an orbital.

• True

• False

Neutral atoms always have the same number of electrons as protons.

• True

• False

As an electron moves further away from the atom’s nucleus, its energy _____.

• fluctuates randomly

• decreases

• increases

• first increases, then decreases

Electrons are part of an _______.

• atom

• nucleus

• quark

• proton

Tags

NGSS.MS-PS1-1