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Atomic Structure 2
Aluminum has 3 electron shells with 3 electrons in the outer shell.

Atomic Structure 2

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High school Chemistry students will be expected to know the atomic structure of certain elements in the Periodic Table. They should know the numbers and arrangement of protons, neutrons and electrons as well as their atomic numbers and their atomic mass. This quiz will help to familiarize students with these elements.

1.
Pick the name for the element with 6 electrons.
Carbon
C
Boron
Nitrogen
Make sure you give the name when you are asked for the name
2.
There are two elements that are liquid at room temperature. They are...
chlorine and mercury
bromine and chlorine
mercury and bromine
mercury and phosphorus
This property cannot be predicted using atomic structure
3.
Pick the symbol pairs for elements that do NOT have the same number of neutrons in their nuclei.
K and Ca
Na and Mg
F and Ne
Li and Be
Li has 4 neutrons and Be has 5 neutrons
4.
An element has 3 electron shells with 3 electrons in the outer shell. Which element is it?
Oxygen
Aluminium
Boron
Chlorine
Aluminum has the atomic number of 13 so it has 2 electrons in the first energy level (shell), 8 in the second leaving 3 in the outermost
5.
An element has 45 electrons around its nucleus. The element is...
rhodium
ruthenium
osmium
iridium
Atomic number = 45 = number of protons = number of electrons
6.
Name the element that contains 12 protons, 12 electrons and 12 neutrons.
Sodium
Magnesium
Potassium
Aluminium
Atomic number of magnesium is 12, mass number 24
7.
Chlorine has two isotopes, one with atomic mass 35 and one with atomic mass 37. Pick the correct combination of subatomic particles for the two isotopes.
Cl 35 - 17 Protons; 17 Neutrons; 18 Electrons
Cl 37 - 20 Protons; 17 Neutrons; 17 Electrons
Cl 35 - 17 Protons; 18 Neutrons; 17 Electrons
Cl 37 - 17 Protons; 20 Neutrons; 17 Electrons
Cl 35 - 18 Protons; 18 Neutrons; 17 Electrons
Cl 37 - 17 Protons; 18 Neutrons; 20 Electrons
Cl 35 - 17 Protons; 17 Neutrons; 18 Electrons
Cl 37 - 17 Protons; 20 Neutrons; 20 Electrons
Isotopes have the same number of protons and electrons, but a different number of neutrons
8.
An element has 2 electron shells with 6 electrons in its outer shell. Which element is it?
Oxygen
Aluminium
Boron
Chlorine
Oxygen has an atomic number of 8
9.
If the temperature is increased to 100°C, which element does NOT become a liquid?
Potassium
Gallium
Phosphorus
Lithium
The melting point of Lithium is 180°C
10.
Pick the correct symbol for the element with the mass number 84.
Bromine
Ar
Kr
Krypton
Make sure that when you are asked for the symbol, you give the symbol and NOT the name
Author:  Kate Gardiner

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