Midterm study guide

Front

1 L = _______ mL

Back

1000

Front

What does the 6 represent in the periodic table?

Back

atomic number

Front

What category of element usually forms a positive ion?

Back

Metals

Front

What is happening to an object while it is in the solid phase?

Back

temperature and kinetic energy are increasing

Front

What is the correct Lewis structure for BF3?

Back

BF3 (The formula is the Lewis Structure)

Front

What is the atomic mass?

Back

The weighted average mass of an element's isotopes.

Front

Define kinetic energy.

Back

The energy an object possesses due to its motion.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically good conductors of heat and electricity, while nonmetals are not.

Front

What is a positive ion?

Back

An atom that has lost one or more electrons, resulting in a net positive charge.

Front

What is the significance of the atomic number?

Back

It determines the number of protons in an atom and defines the element.