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Atoms
Elements
Compounds
Periodic Table
Vocabulary
100
This atom has 1 proton and 1 electron
What is Hydrogen
100
This elements chemical symbol is Au
What is gold?
100
NaCl
What is sodium chloride
100
How is the Periodic Table arranged
What is by increasing atomic number?
100
An atom that has a charge, due to gaining or losing electrons.
What is an ion?
200
These are the positively charged particles in the nucleus
What are protons
200
The chemical symbol of this element is Cl
What is Chlorine?
200
P2O3
What is diphosphorus trioxide?
200
Elements on the Periodic Table are divided into _______, _________, and ____________.
What metals, nonmetals, and metalloids?
200
Two or more different atoms chemically combined, in a specific ratio.
What is a compound?
300
The overall charge of an atom
What is neutral?
300
The chemical symbol for this element is Na
What is sodium?
300
How many atoms of each element are found in H2O
What are two hydrogen and 1 oxygen?
300
The metals are located on the _________ side of the Periodic table.
What is left?
300
A vertical column on the periodic table where elements share chemical properties.
What is a group/family?
400
Explain how to calculate the neutrons in an atom.
What is Subtract the atomic number from the atomic mass?
400
What does the atomic number of an element tell you?
What is the number of protons in an element, and electrons if it's neutral (atom)?
400
CH4
What is methane?
400
Where are the metalloids located?
What is on either side of the zigzag line?
400
Horizontal rows on the periodic table.
What is a period?
500
These two subatomic particles are located in the nucleus of the atom.
What are neutrons and protons?
500
__________ and ___________ are equal in atoms of elements.
What are protons and electrons?
500
aluminum chloride
What is AlCl3?
500
What four pieces of information are located in each box on the periodic table?
What is Chemical symbol, element's name, atomic mass, atomic number?
500
The region around the nucleus where electrons are likely to be found.
What is the electron cloud, orbitals, shells?