GET
YOUR
PERIODIC
TABLE
OUT!
100
What is the atomic symbol?
H
100
What element is this?
Carbon (Look carefully - there's 6 protons)
100
How does static electricity work? (what part of an atom moves?)
Electrons move from one material to another. (ONLY THE ELECTONS - protons or neutrons NEVER move!)
100
A cell is smaller than an atom, and an electron is smaller than a proton.
FALSE
100
What's the atomic mass?
12.0107
200
Which model more correctly shows what electrons are really doing in an atom?
the one on the right (electrons form a cloud as they orbit, like in Schrodinger's model in 1926)
200
Atoms are made up of what?
Protons, Electrons and sometimes neutrons
200
What part of an atom is free to move around from one atom to another?
electrons. NEVER anything else!
200
Pure gold is made up of 3 kinds of atoms.
False (It's only made up of gold ATOMS, not molecules or other atoms)
200
How many neutrons are in here?
44
300
Which element is HELIUM?
B
300
How do you find the number of neutrons?
Number of neutrons=atomic (mass rounded)-atomic number
300
What's the atomic mass of CRAZIUM, a fictional element with 200 protons, 300 neutrons, and 400 electrons?
500
300
molecules are made when atoms are combined.
true
300
How many protons are in Fluorine?
9
400
What do electrons repel? (use your notes from last-time if you need to!)
negative charges, or other electrons
400
Which of these is a MOLECULE?
All but the lonely Helium
400
Are two atoms of the same element identical?
yes. Two atoms of the same chemical element are identical.
400
What element is this?
Lithium (3 protons)
400
How many electrons does this have?
117
500
What do you call something with more than one atom?
molecule
500
Which of these atomic models correctly expanded the understanding of a nucleus having two different particles - the proton and neutron?
Bohr's model in 1913
500
Name at least 3 things wrong with this picture
Needs a nucleus, needs neutrons, needs protons, electrons need to be orbiting the middle
500
Protons in a gold atom are the same as the protons in a helium atom - only the number of protons and neutrons and electrons are different
True
500
How many electrons are in OXYGEN?
8