What information does the group # provide you with?
What is the # of valence electrons? (excludes groups 3-12/transition metals)
100
The Periodic Table is mostly composed of...
What are metals?
100
The particles that make up elements.
What are atoms?
100
The side of the Periodic Table is most reactive?
What is the far left side of the Periodic Table?
200
These subatomic particles are located in the nucleus of the atom...
What are protons and neutrons?
200
Name and list 3 properties of that group.
What is the Alkali Metals Group... 1) extremely reactive, 2) have 1 valence electron, 3) shiny, 4) silver, 5) clay-like, 6) low density, 7) easily cut?
200
Where are the nonmetals located, and in what state do most nonmetals appear at room temperature and pressure?
What is the far right of the Periodic Table, and gases?
200
Anything that has mass and takes up space.
What is matter?
200
Two groups that are likely to react.
What are the Alkali Metals and the Halogens.
300
The atomic number is equivalent to...
What are the number of protons and electrons?
300
Name and list 2 properties of group 17.
What is the Halogen Group... 1) have 7 valence electrons, 2) highly reactive
300
The element along the zig zag line is not considered to be a metalloid, but a metal.
What is aluminum?
300
The outer-most shell of an atom.
What is the valence shell?
300
Explain how the compound sodium chloride (table salt) is formed.
What is sodium gives an electron away leaving it with a full valance shell, and chlorine gains this valence electron completing its valence electron. Both atoms becomes ions, and are attracted to each other.
400
How many protons, electrons, and neutrons does an atom of argon contain?
What are 18 protons, 18 electrons, and 22 neutrons?
400
Name and list 2 properties of group 18.
What are the Noble Gases... 1) contain a full valence shell,
2) odorless and colorless at room temperature and pressure,
3) gases at room temperature and pressure, 4) unreactive
400
An unknown substance is brittle and cannot conduct heat or electricity. This substance is found in the following category of elements.
What is the nonmetals category?
400
When two or more atoms chemically combine to form a new substance.
What is reactivity?
400
Explain how 2 hydrogen atoms and 1 oxygen atom share electrons in order to complete their valance shells.
What is both hydrogen atoms share their 1 valence electron with the oxygen atom and the oxygen atom shares valence electrons with each of the hydrogen atoms. By sharing these valence electrons, the hydrogen atoms fill their valance shell with 2 valence electrons and the oxygen atom fills its valence shell with 8 electrons.