STEMGC22 Chapter 7-8 Quizz

_______ is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds.

(*Capital letters)

The ______ states that when atoms of elements combine to form compounds, they tend to lose, gain, or share electrons to achieve the same electron arrangement as the noble gas nearest them in the periodic table.

(*CAPITAL LETTERS)

The ________ consists of the symbol of an element and one dot for each valence electron in an atom of the element.

Number of valence electrons for Oxygen

• 2

• 4

• 6

An element having 4 valence electrons

• Hydrogen

• Carbon

• Nitrogen

• Oxygen

_______ is one way of representing the concentration of an element in a compound or a component in a mixture.

________, also called molal concentration, is a measure of the concentration of a solute in a solution in terms of amount of substance in a specified amount of mass of the solvent.

________allows us to work in solution by giving us the concept of solution concentration, or molarity.

How many electron bonding pair/s when Potassium ion (1 valence electron) reacted with Fluoride ion (7 valence electron)?

• 1

• 2

• 3

• 4

Given that two oxide ions (6 valence electrons each ion) want to achieve an octet rule via covalent bonding. How many electron bonding pairs will be formed?

• 1

• 2

• 3

• 4