Module 2 Vocab

The ______ of an element is equal to the number of protons in the nucleus of its atoms.

• atomic number

• atomic mass

• valence electrons

• neutron number

Atoms of an element that differ by their mass numbers are called ______.

• isotopes

• ions

• molecules

• compounds

What is the term for the sum of the protons and neutrons in an atom?

• Electron

• Ion

• Mass number

• Element

What is made up of neutrons and protons?

• Electron

• Ion

• Nucleus

• Element

Which bond involves the attraction of two atoms for a shared pair of electrons?

• Ionic bond

• Chemical bond

• Metallic bond

• Covalent bond

What is the attractive force between two ions of opposite charge called?

• Ionic bond

• Chemical bond

• Metallic bond

• Covalent bond

Which bond involves positive ions held together by the attraction to the negative electrons between them?

• Ionic bond

• Chemical bond

• Metallic bond

• Covalent bond

Which bond type is primarily responsible for the formation of salts?

• Ionic bond

• Chemical bond

• Metallic bond

• Covalent bond

Which bond type involves the sharing of electron pairs between atoms?

• Ionic bond

• Chemical bond

• Metallic bond

• Covalent bond

What is the primary bond type in water molecules?

• Ionic bond

• Chemical bond

• Metallic bond

• Covalent bond