Atoms
Elements
Compounds and Mixtures
Periodic Table
100
Positively charged particle
What is a proton?
100
This number tells me how many protons are in the element.
What is the atomic number?
100
A pure bar of gold is an example of this
What is a substance?
100
Similar types of elements are called ______.
What is a family?
200
These two particles make up the nucleus.
What are the proton and neutron.
200
You get an isotope when you have more of these present.
What is neutrons?
200
More than one element combined together in the same proportions forms this.
What is a compound?
200
An element in group 2 has this many electrons in its outer valence shell.
What is two?
300
An atom with 49 protons will also have 49 of these.
What are electrons?
300
Protons + neutrons = _______.
What is atomic mass?
300
H2O, H2O2, C6 H12 O6 are all written examples of ______.
What are formulas?
300
As written, there are _____ number of oxygen molcules in H2O.
What is one?
400
Atoms of one kind make up this
What is an element?
400
Our body is primarily made up of this type or family of elements.
What is non-metals?
400
Oil and water don't stay together, this is an example of _____.
What is a mixture?
400
If I am an element with three valence shells, I am in the third ______.
What is period?
500
Negatively charged particles travel in a region around the nucleus called ______.
What is the electron cloud?
500
They have characteristics of metals and nonmetals.
What is a metalloid?
500
A mixture whose elements are visibly separate.
What is heterogeneous?
500
Elements in group 18 are known as __________ and react with ______.
What is noble gases and nothing?
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