Compounds

What compound has a large difference in electronegativity?

• Ionic

• Covalent

• Metallic

Tags

NGSS.HS-PS1-1

What compound has a small difference in electronegativity?

• Ionic

• Covalent

• Metallic

Ionic bonds are conductors of electricity when...

• Solid

• Molten

• Dissolved

• Liquid

In Covalent bonds, electrons are...

• shared between atoms
• isolated within individual atoms
• created by the attraction of opposite charges
• transferred from one atom to another

Tags

NGSS.HS-PS1-1

In Ionic bonds, electrons are...

• transferred between atoms
• lost in the process
• created by a single atom
• shared between atoms

Types of elements that form Ionic bonds...

• Metals and metals
• Nonmetals and nonmetals
• Metals and nonmetals
• Noble gases and metals

How many oxygen atoms are in 6H2O

• 8
• 4
• 6
• 12

Tags

NGSS.MS-PS1-1

What are parenthesis used for in compounds?

• To show the charge of individual ions in a compound
• Parenthesis appear in the formula when there is multiple polyatomic ions.

• To separate different compounds in a formula
• To indicate the number of atoms in a compound

Why do roman numerals appear in the names of ionic or covalent compounds?

• Roman numerals represent the number of atoms in a compound.
• Roman numerals indicate the temperature at which a compound forms.
• Roman numerals are used to denote the molecular weight of compounds.
• To provide the first elements charge.

In terms of electrons, what does a positive ion indicate?

• A positive ion indicates a gain of electrons.
• A positive ion indicates no change in electron count.
• A positive ion indicates an equal number of protons and electrons.
• A positive ion indicates a loss of electrons.