Answer:
See the explanation below, please.
Explanation:
The elements of the periodic table that belong to the same group (each column) have similar physical and chemical properties. This is because they have the same number of electrons in their last electronic layer.
Example of electronic configuration of elements of GROUP IA:
Hydrogen: 1s ^ 1
Lithium: 1s ^ 2 2s ^ 1
Answer:
molecules, elements
Explanation:
molecules are a mix of elements
Answer:
picture not bright
Explanation:
please a brainliest for tge feedback
I disagree, because a physical change changes the form, and a chemical change is a process where one or more substances are altered into new substances.
