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23 Cards in this Set
- Front
- Back
- 3rd side (hint)
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In the atom, what are the 3 main parts |
Protons, neutrons and electrons |
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Protons have a (...) charge. And a mass of (?) a.m.u |
Positive. 1 a.m.u |
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Neutrons have a (...) charge and a mass of (?) a.m.u. |
No charge. 1 a.m.u. |
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Electrons have a (...) charge and a a.m.u |
Negitive. Very small a.m.u |
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How is an attom composed |
Protons and neutrons form a nucleus and the electrons orbit. Kind of like a solar system |
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What is matter |
Physical substance that occupies space and has mass |
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What makes up matter |
Atoms |
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a.m.u. |
Atomic mass unit |
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What is atomic number |
The number protons in the nucleus and therefore the total positive charge of the atom |
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How do we determine the atomic mass |
The total number of protons and neutrons in the nucleus |
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How do you find the amount of electrons in an atom |
It is usually the same as the number of protons |
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What is an isotope |
Atom of the same element with a different mass number |
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What is a radioisotope |
An isotope that decays usually measured by half life (how we do carbon dating) |
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What are the 6 biggest concentrations of elements in the human body |
In order biggest to smallest Oxygen Carbon Hydrogen Nitrogen Calcium Phosphorus |
O C H N C P |
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What is a molecule |
Are made of atoms chemically bonded togeather |
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What is an element |
A group of atoms of the same attomic number |
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What is a compound |
Different types of atoms chemically bonded together |
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What is a mixture |
Different substances not chemically bound together |
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3 states pf matter |
Gas Liquid Solid |
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Properties of solids |
Particles are orderly, have little space between them and are moving very slowly |
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Properties of a liquid |
Particle are moving fluidly have some space between them Takes the shape of the container |
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Properties of a gas |
Particles are moving rapidly Has lots of space between particles Occupies all the space around it |
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Cohesive force |
Pull between similar types of molecules |
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