Atoms and Bonding Quiz

What is the atomic number (Z) of an element?

• The number of protons in the nucleus

• The number of neutrons in the nucleus

• The total number of electrons

• The mass number of the element

What are valence electrons?

• Electrons in the innermost shell

• Electrons involved in chemical bonding

• Electrons that are not involved in bonding

• Electrons that are lost during a reaction

What is the maximum number of electrons that can be held in the 3rd shell before element 21?

• 8

• 18

• 32

• 2

What is the electron configuration of Oxygen?

• 2, 6

• 2, 8

• 1, 7

• 2, 2, 4

What is the Lewis Diagram of Phosphorus?

• P: 2, 8, 5

• P: 2, 5, 8

• P: 8, 2, 5

• P: 5, 2, 8

What happens to atoms when they bond?

• They lose all their electrons

• They share or transfer valence electrons

• They become unstable

• They gain protons

What is the reactivity trend of metals across the periodic table?

• Increases from left to right

• Decreases from left to right

• Remains constant

• Increases from top to bottom

How do non-metals typically react?

• By losing electrons

• By gaining or sharing electrons

• By forming ionic bonds

• By forming covalent bonds only

What is the stable arrangement of Hydrogen?

• 2 electrons

• 1 electron

• 8 electrons

• 0 electrons

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

• Increases from left to right

• Decreases from left to right

• Remains constant

• Increases from bottom to top