1, 2, 1, 2, in that order.
Explanation:
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It is about equal to the mass of the neutron. So, most people just say that they have the same mass.
*Hope that helps and enjoy Brainly :)*
Electronegativity is a measure of an atom's ability to attract shared electrons to itself. On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group.
Answer:
Rain forest
Explanation:
The rainforest has a very diverse animal kingdom
