Atoms are the smallest and main building blocks of ordinary matter, and they join together to form molecules that make the objects around us. In 9th grade chemistry, we got to dive deeper into the makeup and the elements as a whole. Getting ready for that end year exam? Take up the test below and get to review all that we have covered so far.
True
False
Increase
Decrease
Stay the Same
Change of Colour
Gas/Bubbles Form
It becomes Poisonous
Creates heat/light
Scent Changes
Neon
Magnesium
Sulfur
Two metals
Two nonmetals
A metal and a nonmetal
They are likely to bond with other elements more easily.
They are unlikely to bond with other elements.
They will be labelled as "unstable".
They will explode.
3
8
16
100
Sulfur (Valence electrons: 6)
Neon (Valence electrons: 8)
Four Oxygen, Two Hydrogen
Two Hydrogen, Two Oxygen
One Hydrogen, Three Oxygen