Chemistry Fall Semester Review 2024

Front

What is Electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What happens to frequency when wavelength increases?

Back

Frequency decreases.

Front

What is the relationship between atomic radius and electron loss?

Back

When an atom loses an electron, its radius decreases.

Front

Define Ionization Energy.

Back

Ionization Energy is the energy required to remove an electron from an atom in its gaseous state.

Front

How do you convert grams to moles?

Back

To convert grams to moles, divide the mass of the substance (in grams) by its molar mass (in g/mol).

Front

What is the molar mass of Iron (Fe)?

Back

The molar mass of Iron (Fe) is approximately 55.85 g/mol.

Front

What is the formula for calculating frequency?

Back

Frequency (f) = Speed of Light (c) / Wavelength (λ).

Front

What is the trend of electronegativity in the periodic table?

Back

Electronegativity increases across a period and decreases down a group.

Front

What is the significance of the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.