Melting point- the temperature at which a substance has changed from a solid to a liquid
freezing- the temperature at which a substance chanes from liquid to a solid
boiling point- the temperature at which a substance changes from a liquid to a gas phase
Answer: B
Explanation:
protons are positive,
electrons are negative,
and neutrons are neutral.
the amount of electrons to protons is always the same in a balanced atom.
electrons can be removed creating "ions" which is simply an unbalanced atom. removing protons would result in a different type of atom or element.
Answer: D i think
Explanation: Im sorry if it is wrong lol!! I pretty sure thats the answer...
Answer: Alkali metals, group 1
Explanation: Group 1 means 1 valence electron. This group is called alkali metals, which indicates that it is a metal. They are highly reactive because only 1 electron needs to move to bond with something (since it only has 1 valence electron)
