Pre-Chemistry Skills
Atomic Theory
The Mighty Atom
Periodic Table
Name this Element
100
As opposed to corrosion, explosion and decomposition, evaporation is an example of this
What is a physical change?
100
J.J. Thomson used the cathode ray rube to discover these subatomic particles.
What are electrons?
100
The first model of the atom to have electrons in quantized energy levels
What is the Bohr model?
100
Neon can be found in this group.
What is noble gases?
100
The symbol for Fluorine.
What is F?
200
A homogeneous mixture
What is a solution?
200
Isotopes have different numbers of these
What are neutrons?
200
These are found in the nucleus of an atom.
What are neutrons and protons?
200
This group of elements is found to the left of metalloids.
What are metals?
200
Sn
What is Tin?
300
0.0000145 in correct scientific notation
What is 1.45 x 10^-5?
300
The number of protons in carbon-14
What is 6?
300
This subatomic particle has a neutral charge.
What is a neutron?
300
This family of elements is found in Group 1A.
What is alkali metals?
300
Has an atomic number of 8.
What is oxygen?
400
The number of significant figures in the number 0.003420
What is 4? (3, 4, 2, last 0)
400
The sum of protons and neutrons in an isotope
What is the atomic mass?
400
In this type of atom, the electrons equal the neutrons.
What is neutral atom?
400
Terbium is this type of element.
What is lanthanoids?
400
Has 30 protons.
What is zinc?
500
The ratio of mass to volume at a given temperature.
What is density?
500
This person discovered the nucleus of an atom.
What is Rutherford?
500
An atom whose electrons does NOT equal the protons.
What is an ion?
500
These elements are metalloids
What are B, Si, Ge, As, Sb, Te, and Po?
500
Has a mass number of 27 and contains 14 neutrons in its nucleus.
What is Aluminum?
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