Vocab
Periodic Table
The Nucleus
Atomic Number and Atomic Mass
All About Atoms
100
What is the smallest part of an atom?
What is electron?
100
What is the chemical symbol for sodium?
What is Na?
100
The charge of the electrons are ______
What is Negative
100
How many protons are in Carbon atom
What is 6
100
What's in the center of an atom
What is nucleus
200
What do we call the combination of two or more atoms?
What is Molecule
200
The chemical symbol Hg stands for which element?
What is Mercury?
200
The charge of Protons are_____
What is Positive
200
_______ and ____ is the same as the atomic number
What is Protons and Electrons
200
What Particles surrounds the nucleus
What are Electrons
300
What is the number at the bottom of each element on the periodic table?
What is Atomic Mass?
300
How many periods (rows) are on the periodic table?
What is 7?
300
_______ _______ is the number of protons found in the nucleus
What is Atomic Number
300
How do you find the number of neutrons?
What is atomic mass - atomic number/number of protons?
300
What do electrons do in the atom
What is Orbit
400
A substance made up of only one kind of atom is...
What is Element
400
How is the Periodic Table arranged?
What is by an increase in the atomic number?
400
____and_____ are found in the nucleus
What is Protons and Neutrons
400
If the atomic number of Mercury is 80 and the atomic mass is 201, how many protons are in the nucleus?
What is 80
400
The number of_______________= the number of electrons in a neutral atom
What is Protons
500
What is the name of the force that holds the nucleus together?
What is the strong force?
500
Who discovered the atom?
Who is Democritus?
500
Why does an atom of an element on the periodic table have a neutral charge?
What is because there are equal numbers of protons and electrons?
500
What is the atomic mass of an atom of Sulfur?
What is 32.07
500
What is the name of a positively OR negatively charged atom called?
What is an Ion?
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