Chemistry | Atomic Structure

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  • Created by: GreatKate
  • Created on: 03-04-14 20:03
What is the definition of an element?
An element is made up of one type of atom and cannot be broken down into anything simpler/smaller
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What is the definition of a compound?
A compound is made up of two or more types of atom chemically bonded together
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How does a compound differ to a mixture?
In a mixture the substances are not bonded together so they can be easily separated but a compound cannot
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What sub-atomic particles are atoms made of?
Atoms are made up of sub-atomic particles called protons, neutrons and electrons
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Where are each of the sub-atomic particles in an atom found?
The proton(s) and neutron(s) are found in the nucleus but the electron(s) are found on the energy level(s)
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What is the mass number equal to?
The mass number is equal to the amount of protons in an atom plus the number of neutrons
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What is the charge and relative mass of a proton?
Mass = 1 | Relative Charge = +1
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What is the charge and relative mass of a neutron?
Mass = 1 | Relative Charge = 0
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What is the charge and relative mass of an electron?
Mass = ~0 | Relative Charge = 1-
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What is the definition of an isotope?
Isotpoes are atoms of the same element that have the same number of protons but a different number of neutrons (they both react in the same way, one is simply heavier!) To find the number of neutrons subtract the proton number from the mass number
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How many electrons can go on an energy level?
Level 1 = 2 | Level 2 onwards = 8
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Where are the noble gases found on the periodic table?
The noble gases are found in group 0, the far right hand column. They all have full outer energy levels
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What is the definition of ionic bonding?
Ionic bonding occurs when a metal and a non-metal react together. It involves transfer of electron(s) in order to achieve a full outer energy level. This results in the formation of oppositely charged ions which attract each other electrostatically
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What is the definition of covalent bonding?
Covalent bonding occurs when two or more non-metals react together. It involves the sharing of electron(s) of the outermost energy level to achieve a full outer energy level. When an atom bonds covalently molecules are formed
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Card 2

Front

What is the definition of a compound?

Back

A compound is made up of two or more types of atom chemically bonded together

Card 3

Front

How does a compound differ to a mixture?

Back

Preview of the front of card 3

Card 4

Front

What sub-atomic particles are atoms made of?

Back

Preview of the front of card 4

Card 5

Front

Where are each of the sub-atomic particles in an atom found?

Back

Preview of the front of card 5
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