Share Grade 8 - Atoms and Trends
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Subatomic that has positive charge
Proton
Subatomic that has negative charge
Electron
The smallest unit of matter
Atom
Subatomic that has neutral charge
Neutron
The column in periodic table
Group
The row in periodic table
Period
The most reactive group in periodic table
Alkali metals
The most stable group in periodic table
Noble gases
The group that doesn't have reactivity as their properties
Noble gases
Which element is more reactive between Sodium and Calcium?
Sodium
How does the reactivity order of metals in the periodic table?
From right to left and top to bottom
Which element is more reactive between Oxygen and Neon?
Oxygen
