Chemistry Fall Review

Front

What is the chemical formula for lithium oxide?

Back

Li2O

Front

What characteristics best describe alkali metals?

Back

They have 1 valence electron and react violently with water.

Front

Which element is the most electronegative?

Back

Chlorine.

Front

What type of compound is magnesium oxide (MgO)?

Back

Ionic.

Front

Identify the element with the electron configuration: [Ar] 4s2 3d10 4p3.

Back

Arsenic.

Front

What is the general trend of electronegativity in the periodic table?

Back

Electronegativity increases from left to right across a period and decreases down a group.

Front

Define ionic bond.

Back

An ionic bond is a chemical bond formed between two ions with opposite charges.

Front

What are the properties of ionic compounds?

Back

Ionic compounds typically have high melting and boiling points, are soluble in water, and conduct electricity when dissolved.

Front

What is the significance of valence electrons?

Back

Valence electrons determine an element's chemical properties and its ability to bond with other elements.

Front

What is the octet rule?

Back

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