The Periodic Table
Parts of Atoms
Atomic Math I
Atomic Math II
100
Most of the elements on the periodic table belong to what category? a. nonmetals b. metalloids c. metals
metals
100
What is the charge of a proton?
positive
100
What is the chemical symbol for Hydrogen?
H
100
What is O the chemical symbol of?
oxygen
200
On the periodic table, the vertical rows that are read from top to bottom are called _______________.
Groups
200
What is the charge of a neutron?
neutral
200
Calcium has an atomic number of 20 and an atomic mass of 40. How many protons does calcium have?
20
200
What is the chemical symbol of gold?
Au
300
On the periodic table the _________________ are the horizontal rows that are read from left to right.
periods
300
Where in the atom are the electrons located?
orbiting around the nucleus
300
Lithium has 3 protons and 4 neutrons. What is its atomic mass?
7
300
Potassium has an atomic number of 19 and an atomic of 40. How many protons does potassium have?
19
400
Today, the elements on the periodic table are arranged by their:
atomic number
400
The part of an atom that has a negative charge is:
the electron
400
The number of protons is the same as the atomic _________.
number
400
Magnesium has an atomic number of 12 and an atomic mass of 24. How many neutrons does magnesium have?
12
500
The elements on the periodic table were ORIGINALLY arranged by Mendeleev by what?
Atomic Mass
500
The protons and neutrons are located in an atom's __________.
nucleus
500
Adding the ___________ and the ___________ gives you the atomic __________.
protons, neutrons, mass
500
Strontium has an atomic number of 38 and an atomic mass of 88. How many neutrons does strontium have?
50
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