C2 Atomic Structure
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What subatomic particles are in the nucleus in an atom?
Protons and neutrons
What subatomic particle goes around the nucleus in an atom?
Electrons
What is the charge on a proton?
+1
What is the charge on a neutron?
0
What is the charge on an electron?
-1
Do atoms have a charge, why?
No because the number of positive protons equal the number if negative electrons
A carbon atom has 6 protons how many electrons will it have?
6
What order are the elements in the modern periodic table?
Atomic number
How do you calculate the number of protons in an element?
Atomic number
Do you always get the same number of protons in an element?
Yes
How many protons has Lithium?
3
How many electrons has Lithium?
3
How do you calculate the number of neutrons in Lithium?
Mass number- atomic number = 7-3=4
How many electrons can occupy the first (inner) shell?
2
How many electrons can occupy the second shell?
8
How many electrons can occupy the third shell?
8
Draw the electron structure of a Lithium atom.
How many outer electrons have the elements in group 1?
1
How many outer electrons have the elements in group 6?
6
What is the electron configuration for Lithium?
2,1
What is a compound?
Substance containing 2 or more elements chemically bonded together
Which electrons are involved in chemical bonding?
Outer electrons
What happens to electrons when they are involved in bonding?
Transferred or shared
What is the relative mass of a proton?
1