What is the charge on a Hydrogen ion?

• +1
• 1
• 2

Tags

NGSS.HS-PS1-2

What is the charge on an Aluminium ion?

• 3
• +3
• +2
• +1

Tags

NGSS.HS-PS1-1

What is the charge on a chloride ion?

• -1
• 1
• +2
• +1

Tags

NGSS.HS-PS1-1

Which of the following is NOT a property of ionic compounds?

• They conduct electricity when molten

• They conduct electricity when in solution

• They have high boiling points

• They are insoluble in water

What is the charge of Neon?

• 0
• +1
• -1
• 1

Tags

NGSS.HS-PS1-1

When an atom loses an electron, it becomes a:

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

Tags

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

In what form can an ionic compound conduct electricity?

• when dissolved in water
• as a solid
• as a crystal
• when warmed slightly

How are covalent bonds explained?

• When one atom takes the other atom's electron
• When the atom shares an electron with an another atom
• When the two nucleus merge
• When the neutrons leave the nucleus

Tags

NGSS.HS-PS1-2

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

Tags

NGSS.MS-PS1-1