Structure of the Atom
Chemical Symbols
Masses of Atoms
Periodic Table
Misc.
100
protons and neutrons are found in
What is the nucleus
100
Au
What is gold
100
atomic mass of boron
What is 10.81
100
first element in the periodic table
What is hydrogen
100
the weighted-average mass of the mixture of its isotopes.
What is average atomic mass
200
particles with an electrical charge of 1+
What are protons
200
He
What is helium
200
atomic mass of carbon
What is 12.01
200
repeated in a pattern
What is periodic
200
atoms of the same element that have different number of neutrons are called
What is isotopes
300
neutral particles that do not have an electrical charge
What are neutrons
300
Fe
What is iron
300
atomic mass of oxygen
What is 16.00
300
uses the symbol of the element and dots to represent the electrons in the outer energy level.
What is electron dot diagram
300
the number of protons in an atom is equal to a number called
What is atomic number
400
what protons and neutrons are made up of
What are quarks
400
K
What is potassium
400
atomic mass of sodium
What is 22.99
400
horizontal rows of elements on the periodic table are called
What is periods
400
the area around the nucleus of an atom where its electrons are most likely found.
What is electron cloud
500
what John Dalton's atomic model was
What is a simple sphere
500
Yb
What is ytterbium
500
atomic mass of copper
What is 63.55
500
he discovered that the elements had a periodic pattern in their chemical properties.
Who is Dmitri Mendeleev
500
Gd
What is Gadolinium
M
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