Atoms
Vocab words
Molecules
Random
Periodic Table
100
Name the 3 particles of an atom.
Proton, neutron, electron
100
A (n) _____ is a very small particle that is the basic unit of matter.
Atom
100
What is the chemical formula of water?
H2O
100
How many electrons does an atom of Helium have?
2
100
The number of protons in an atom of an element is its Atomic ______
atomic number
200
The positively charged particle
A proton
200
This is found in the center of an atom and is made up of protons and neutrons.
The nucleus
200
This is a connection between atoms that holds molecules together
chemical bonds
200
What is the first element on the periodic table?
Hydrogen
200
What is the Atomic Mass made up of?
protons + neutrons
300
Neutron have _______ charge
zero / neutral
300
These are things that are made of two or more atoms
molecules
300
When electrons are transferred as atoms bond, an _________ bond is formed.
Ionic
300
What is the name of this specific molecule?
Carbon Dioxide
300
When looking at the Periodic Table how can you tell the difference between the Atomic Number and the Atomic Mass?
1) The Atomic Number is usually on top and the Atomic Mass is usually on the bottom
400
The negatively charged particle that moves around outside the nucleus?
electron
400
An element with an electrical charge due to extra electrons or missing electrons.
Ion
400
When electrons are shared as atoms bond, a _____________ bond is formed.
Covalent
400
The first law of thermodynamics states that _______ and ________ cannot be _________ or __________, they can only change forms.
Matter and energy; created or destroyed
400
What is the Atomic Number of Silicon?
14