Atoms
Atomic Numbers
Parts of Atoms
Symbols
Counting Atoms
100
The nucleus of an atom contains
What are Protons and Neutrons?
100
The atomic number for Helium
What is He?
100
A positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element
What is a Proton?
100
Symbol for Helium
What is He?
100
How many elements are present in this compound?
Mg2As3COHNi2
What is 6?
200
In a chemical formula, the subscript is a small number written slightly below a symbol representing the number of
What is Atoms?
200
The atomic number for Oxygen
What is 8?
200
The number of protons in the nucleus of an atom
What is a Atomic number?
200
Symbol for Iron
What is Fe?
200
In this compound structure of alcohol, how many Hydrogen atoms are there
What is 6?
300
Which formula represents a compound: Fe Cl KF Xe
What is KF?
300
The atomic number for Gold
What is 79?
300
The sum of protons and neutrons in the nucleus of an atom
What is a Mass number?
300
Symbol for manganese
What is Mn?
300
How many atoms of Hydrogen are in this compound
What is 2?
400
Most elements on the Periodic Table of Elements are classified as
What is Metals?
400
The atomic number for Iron
What is 26?
400
Average mass of the protons and neutrons in the nucleus of an atom
What is Atomic Mass? 
400
Symbol for Lithium
What is Li?
400
If there is no subscript, there is ______ atom(s) of that element.
What is only 1?
500
An atom with an atomic mass number of 238 and atomic number 92 contains __________________ neutrons.
What is 146?
500
The atomic number for Magnesium
What is 12?
500
The specific amount of energy an electron has; electrons closer to the nucleus have more energy than the electrons further away from the nucleus
What is Energy level?
500
Symbol for beryllium
What is Be?
500
How many atoms are in the element Carbon in this compound?
H2C3O4N5
What is 3?