Atoms
Matter
Periodic Table
Counting Atoms
Valence Electrons
100
What is in the middle of an Atom ?
Nucleus
100
Are you matter ?
Yes
100
What does Cu mean ?
Copper
100
Solve for 3AsBr3
As:3 Br:6
100
What's the Valence Electron for He ?
2
200
Whats outside of the nucleus ?
Electrons
200
What is matter ?
Anything that has mass and takes up space
200
What is Fe Mean ?
Iron
200
Solve for 3ClF
Cl:3 F:3
200
What's the Valence Electron for Ni ?
18
300
What has a positive Charge in the Atom ?
Protons
300
What are the 3 classes of a Matter ?
Element, compound, Mixture
300
Where are the noble gases located on the Perodic Table ?
Group 18
300
Solve for 6Cu2SeO4
Cu: 12 Se: 6 O:24
300
What is the Valence Electron for Ne ?
8
400
What has a neutral charge or no charge ?
Neutron
400
Is gas Matter ?
Yes Gas is matter
400
What are the Most Reactive Elements ?
Alkali Metals
400
Solve for SBr2
S:1 Br:2
400
What's the Valence Electron for Fe ?
16
500
Who Discovered the Neutrons ?
James ChadWick, (1932)
500
Is compound a state of matter ?
Yes compound is a state of matter
500
What does Lr stand for ?
Lawrencium
500
Solve for 12H2O
H:24. O:12
500
What's the Valence Electron for F ?
7
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