Periodic Table

What is an element?

• properties that can be seen

• how much something weighs

• building blocks of matter

• An atoms center

Which elements make up 96% of the mass of the human body? Choose all that apply.

• carbon

• hydrogen

• oxygen

• nitrogen

• sodium

What is the most important substance to all living things?

• hydrogen

• carbon

• iron

• water

Which of these are examples of physical properties? Choose all that apply

• burning

• color

• magnetic

• hardness

• boiling and freezing points

Which are examples of chemical properties? Choose all that apply.

• flammability

• toxicity

• ability to dissolve

• boiling and freezing points

True or False, Atoms are too small to be seen.

• True

• False

What is at the center of an atom?

• neuron

• stuff

• brain

• nucleus

What does the atomic number tell you?

• It identifies the element and tells how many protons are in the nucleus

• It tells how many neutrons it has

• It tells you the order it was discovered

• It tells you the size - for example atomic number 1 is the smallest element

Elements get placed in one of three groups. What are the three groups

• Metals

• Nonmetals

• Metalloids

• Slimy

The Periodic Table has 18 columns, what are these columns called?

• groups

• rows

• periods

• alloys