Ions and Isotopes

When the valence shell of an atom is full, the atoms is chemically _____________.

• Full

• Radioactive

• Stable

• Unstable

An atom with an electrical charge is called an _____________.

• Atom

• Isotope

• Covalent

• Ion

The electrons found in the outermost shell are called _____________ electrons.

• Energy

• Valence

• Negative

• Covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A positively charged atom (more protons than electrons) is called a __________.

• Anion

• Cation

• Isotope

A negatively charged atom (more electrons than protons) is called a __________.

• Anion

• Cation

• Isotope

Atoms with the same number of protons but different numbers of neutrons (Carbon 14 and Carbon 12) are called ___________.

• Anion

• Cation

• Isotope

A chemical _____________ is a new substance that forms when atoms of two or more elements are bonded together.

• Compound

• Isotope

• Ion

• Formula

Atoms become ___________ when their outer energy shell (valence shell) is full.

• Stable

• Unstable

____________ bonds form when they share electrons.

• Ionic

• Covalent

• Isotope

Tags

NGSS.HS-PS1-1

______________ bonds form between two oppositely charged ions (cation-anion)

• Ionic

• Covalent

• Isotope