Answer:
Science does not change across region.
Explanation:
Regardless of language barriers or methods of learning, science is the study of fundamental concepts that explain how our world and the universe works.
In group 1, elements get more reactive going down the group. Sodium is more reactive than lithium since when going down, each element gains an extra valence electron, and the outer shell electrons get further and further away from the nucleus while also becoming more in number. Due to this, the element becomes unstable and more reactive.
I think it is
Barium Sulfide + Platinum Difluoride = Barium Fluoride + Platinum Sulfide<span>
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Answer:
B
Explanation:
An element is something on the periodic table <em>by itself</em>.
Answer: 11 Electrons
Explanation: This is because a neutral atom has the same number of protons and electrons.
