The answer is either A or C. Sorry I'm not much help :)
Answer:
Astronomy is a subject area which contain a question that can be answered by Science.
Explanation:
Hope This Helps?
A particle is defined as a small potion of matter. From its definition, then a single atom can be considered as an atom. This is because an atom is the smallest unit of matter. Also, a molecule can be considered as a particles since it is a small portion of a certain object.
Answer:
More electronegative element in each pair
O & F ⇒ Fluorine is more electronegative.
O & Br ⇒ Oxygen is more electronegative.
O & S ⇒ Oxygen is more electronegative
O & N ⇒ Oxygen is more electronegative
O & P ⇒ Oxygen is more electronegative
O & K ⇒ Oxygen is more electronegative
O & Ca ⇒ Oxygen is more electronegative
Explanation:
Electronegativity is the measure pf tendency to attract bond pair electrons towards itself in a covalent bond.
More electronegative element attract bond pair electron from less electronegative element.
Electronegativity increases along the peroid when we move from left to right in perodic table and decreses down the group or top to bottom in periodic table.
So Oxygen, Fluorine, Chlorine and Nitrogen are the most electronegative among the all elements in periodic table.