Quiz Over Sections 2.1 and 2.4

The amount of material that makes up a person is that persons

• weight

• mass

• intelligence

• aura

The measure of the gravitational pull on a person is their

• mass

• weight

• aura

• intelligence

iron, copper, silver, hydrogen, and oxygen are examples of

• elements

• compounds

• organic matter

• force

Which are the main elements found in the human body that make up 95% of the body

• oxygen

• carbon

• sodium

• iron

What is oxygens atomic number?

• 15

• 1

• 8

• 16

How many protons does oxygen have?

• 1

• 8

• 16

• 15

Which atomic particles are found inside the nucleus of each element?

• protons

• protons and neutrons

• electrons

• protons and electrons

What type of charge do electrons hold?

• negative

• positive

• neutral

• none

What particle inside oxygen causes oxygen to have different atomic masses?

• protons

• electrons

• neutrons

• nothing

What occurs to HCl when placed into water?

• nothing

• they combine covalently

• the H+ and Cl- separate and form ions

• ions become regular elements again