Atoms & the PTE Basics

Which is NOT a subatomic particle?

• protons

• neutrons

• electrons

• megatrons

A proton...

• is neutrally charged.

• is negatively charged.

• is positively charged.

• loves to have fun!

A neutron...

• is negatively charged.

• is positively charged.

• has no charge.

• is in the electron cloud.

An electron...

• is neutrally charged.

• is negatively charged.

• is positively charged.

• is inside the nucleus of an atom.

Tags

NGSS.MS-PS2-3

An isotope is...

• an element that has different numbers of neutrons.

• an element that has different numbers of protons.

• an element that has different numbers of electrons.

• an element that is charged.

Tags

NGSS.HS-PS1-8

An ion is...

• an element that has different numbers of neutrons.

• an element that has different numbers of protons.

• an element that has different numbers of electrons.

• an element that is charged.

A cation is an element that has...

• lost electrons.

• gained electrons.

• lost neutrons.

• gained neutrons.

An anion is an element that has...

• lost electrons.

• gained electrons.

• lost neutrons.

• gained neutrons.

The first energy level of an atom can hold up to __ electrons.

• 0

• 1

• 2

• 8

The second energy level of an atom can hold up to __ electrons.

• 16

• 18

• 2

• 8