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Matter
Atom
ions Bonds
Periodic table
Isotopes
100
Matter is made up these
What are atoms
100
The smallest unit of a pure substance that still has the properties of that substance
Atom
100
cation
What is an atom that has lost electron(s) called
100
Group 1 metals on the periodic table except hydrogen
What is alkali earth metal
100
Atoms of the same elements but with different number of neutrons
What are isotopes?
200
Atoms bond together to form these larger units
What are molecules?
200
The center of an atom
What is a nucleus?
200
Atom that has gained or lost and electron(s)
What is an ion?
200
The method of organizing elements by their atomic number
What is the periodic table?
200
12C 13C 14C
What are the three isotopes of carbon?
300
Matter exists in these three states
What are solid, liquid and gases?
300
Every atom's nucleus contains at least one of these
What is a proton
300
Ionic bond
Which chemical bond is made up of ions?
300
The difference between the atomic number and the atomic mass.
What is the number of neutrons?
400
Two different ways that matter can change
What are physical or a chemical change?
400
A negatively charged subatomic particle
What is an electron?
400
Helium
All noble gas elements have 8 valence electrons except
400
1H
What is the isotope which has no neutron?
500
The ability of a substance to reach chemically
Reactivity
500
The number of protons in an atom
What is the atomic number
500
An element that has properties of both metals and nonmetals.
What is a metalloid?
500
17O
What is the isopope of oxygen which has 9 neutrons?