Pre-AP Chemistry Midterm Review

Front

What is the name for OH^1-?

Back

Hydroxide

Front

What is the average atomic mass of an element with a mass of 35.45 amu?

Back

35.45 amu

Front

What is the Lewis dot structure for Carbon?

Back

The Lewis dot structure for Carbon has 4 dots around the symbol C, representing its 4 valence electrons.

Front

How is the periodic table organized?

Back

The periodic table is organized by increasing protons.

Front

What happens to the wavelength and energy of light as the frequency decreases?

Back

The wavelength becomes longer, and the energy decreases.

Front

Define atomic mass.

Back

Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two atoms share one or more pairs of electrons.

Front

What is the difference between an ionic bond and a covalent bond?

Back

An ionic bond involves the transfer of electrons from one atom to another, while a covalent bond involves the sharing of electrons.

Front

What is the significance of the octet rule in chemistry?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving stability.

Front

What is the formula for calculating the number of neutrons in an atom?

Back

Number of Neutrons = Atomic Mass - Atomic Number.