Chemistry II. Intro quiz

What is the atomic symbol for Chlorine?

• C

• Cl

• Ch

• K

What does Ca represent in the periodic table?

• Potassium

• Carbon

• Calcium

• Chlorine

What is the atomic symbol for sodium?

• S

• So

• N

• Na

What is the atomic number for oxygen?

• 8

• 4

• 12

• 2

How many protons does Helium have?

• 2

• 3

• 8

• 12

How many electrons does Nitrogen have?

• 2

• 7

• 8

• 16

What is the atomic symbol for magnesium?

• M

• Ma

• Mn

• Mg

Which element has 3 electrons in the outermost shell?

• Lithium

• Boron

• Oxygen

• Sulphur

Which chemical reaction always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water?

• Decomposition

• Synthesis

• Combustion

• Single Replacement

Which phrase describes what happens to atoms in a chemical reaction?

• never lost or gained, just rearranged

• sometimes lost, never rearranged

• sometimes lost, gained, or rearranged

• lost or gained, never rearranged