Periodic Table and Elements

A compound is two or more different...

• elements that are chemically combined.

• elements that are physically mixed.

• elements that are easily separated.

• elements that are in a gaseous state.

Group 1 elements are attracted to elements in group...

• 15

• 16

• 17

• 18

Group 1 elements are the most...

• reactive metals!

• noble gases

• transition metals

• alkaline earth metals

List 4 examples of common compounds:

• CO2, H2O, C6H12O6 and NaCl.

• H2O, O2, N2, and CH4.

• NaCl, KCl, CaCO3, and H2SO4.

• C6H12O6, C2H5OH, NH3, and HCl.

Most elements with an atomic # greater than 83 are...

• stable and non-radioactive.

• radioactive because their nuclei are unstable.

• metals that are commonly used in construction.

• non-metals that are essential for life.

The three categories of elements on the periodic table are...

• metals, nonmetals, and metalloids.

• alkali metals, alkaline earth metals, and transition metals.

• noble gases, halogens, and lanthanides.

• actinides, post-transition metals, and rare earth elements.

How many periods are there on the periodic table?

• 5

• 6

• 7

• 8

What's another word that describes the 'Noble' Gases?

• Reactive

• Inert

• Volatile

• Corrosive

How many groups are there on the periodic table?

• 16

• 18

• 20

• 14

Categories of elements seen on the table from left to right are...

• metals then nonmetals then metalloids.

• metalloids then metals then nonmetals.

• metals then metalloids then nonmetals.

• nonmetals then metalloids then metals.