Atoms, Bonding, & The Periodic Table Chapter Review

Front

What is a covalent bond?

Back

A chemical bond formed when two atoms share electrons.

Front

True or False: Within each period in the periodic table, elements have similar properties because they have the same number of valence electrons.

Back

False

Front

What is the chemical name for the compound with the formula Na₂S?

Back

Sodium sulfide.

Front

What is the atomic number of manganese?

Back

25

Front

True or False: Ionic compounds that dissolve in water conduct electricity because they break into ions that move freely.

Back

True

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number and grouped by similar properties.

Front

What is an ionic bond?

Back

A chemical bond formed through the transfer of electrons from one atom to another, resulting in attraction between oppositely charged ions.

Front

What is the atomic mass of manganese?

Back

54.938 amu.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.