Chemical Bonding and Properties (Warm-Up)

Front

What is a chemical bond?

Back

A chemical bond is a lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds.

Tags

NGSS.HS-PS1-1

Front

What are the two main types of chemical bonds?

Back

The two main types of chemical bonds are ionic bonds and covalent bonds.

Front

What is an ionic bond?

Back

An ionic bond is formed when one atom transfers electrons to another atom, resulting in the formation of charged ions.

Tags

NGSS.HS-PS1-2

Front

What is a covalent bond?

Back

A covalent bond is formed when two atoms share one or more pairs of electrons.

Tags

NGSS.HS-PS1-1

Front

What is the electron dot diagram?

Back

An electron dot diagram represents the valence electrons of an atom as dots around the element's symbol.

Front

How many valence electrons does phosphorus have?

Back

Phosphorus has 5 valence electrons.

Front

What happens to an atom when it loses an electron?

Back

When an atom loses an electron, it becomes a cation, which is a positively charged ion.

Front

What happens to an atom when it gains an electron?

Back

When an atom gains an electron, it becomes an anion, which is a negatively charged ion.

Front

What is the molecular formula for ammonia?

Back

The molecular formula for ammonia is NH₃.

Tags

NGSS.MS-PS1-1

Front

What type of bond is present in NH₃?

Back

NH₃ has covalent bonds between nitrogen and hydrogen atoms.