Chemistry Bonding Basics

A(n) _________ is an ion with a positive (+) charge.

• anion
• cation
• ion
• solute

When an atom loses an electron, it becomes a:

• positive ion
• negative ion
• neutral ion
• neutral atom

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?

• There are 2 bromide ions for every magnesium ion
• Bromide has a 2- charge
• Bromide has a 2+ charge
• There are 2 magnesium ions to every bromide ion

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NGSS.MS-PS1-1

Elements in Group 1 lose one electron to form ions with a _________________ charge.

• 1+
• 2+
• 0
• 1-

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A charged particle that has gained at least one electron is called a(n) _____.

• Anion
• Cation
• Anonion
• chemistry cat

Which is the correct name for CaBr₂?

• Calcium Bromine
• Bromine Calcium
• Calcium Bromide
• Carbon and Bromine

A covalent compound contains _______.

• Alkali metals
• Two metals
• A metal and a nonmetal
• Nonmetals

When two atoms share electrons, a chemical bond is formed.  This type of bond is called:

• covalent bond
• ionic bond
• crystal bond
• polyatomic bond

Which group of elements have full outer shells?

• The alkali metals
• The full gases
• The halogens
• The noble gases

Tags

NGSS.HS-PS1-1

How many valence electrons do most atoms need to have a complete outer shell and be happy?

• 1
• 8
• 10
• 5

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2