Who Am I?
Atomic Theory
Elements, Compounds & Mixtures
The Periodic Table
Random!
100

Group 18, Period 1

Helium (He)

100

Protons have what kind of charge? 

positive

100

substance made of one type of atom, cannot be broken down

element

100

Horizontal rows are called....

periods

100

Neon, Argon, Krypton are part of which family/group?

Noble Gas

200

Group 1, Period 1 

Hydrogen (H)

200

What does "atomos" mean? 

uncuttable

200

two or more elements are chemically combined

compound

200

Vertical columns are called...

groups

200

Why is water considered a compound and not a mixture? 

Water is chemically combined and cannot be separated physically.

300

Group 13, Period 2

Boron (B)

300

Who discovered electrons?

J. J. Thomson

300

What is a mixture? 

two or more substances that are physically combined. 

300

How is the periodic table arranged? 

by atomic weight, atomic number, reactiveness 

300

This element group is highly reactive and rarely found uncombined in nature.

Alkali Metals

400

Group 17, Period 3

Chlorine (Cl)

400

Who said that electrons orbit the nucleus? 

Niels Bohr

400

E, C or M? 

Water

Compound

400

Who is considered the father of the Periodic Table? 

Dmitri Mendeleev

400

Name an element in the Halogen family.

Bromine, Iodine, Chlorine, Fluorine

500

Group 13, Period 6

Mercury (Hg)

500

Where are protons and neutrons located? 

The nucleus

500

E, C or M?

Copper

element

500

Which element is found in Group 2, Period 3? 

Magnesium (Mg)

500
Which element is a main component in your bones? 
Phosphorous
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