Matter is anything that "has mass and takes up space" or option B. Matter is everything, it does not need a physical state, it does not need two elements to combined chemically, and it also doesn't have to be important to human society. Mass has to have mass, and volume. Mass is the amount of weight a object has, and volume is how much space the object also has.
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Answer:
Lowest: NF3, PBr3, NCl3: Highest
Explanation:
NCl3 is the highest because of the inoic bonds
PBr3 is higher than NF3 because of the larger molar mass.
Answer:
Be³⁺
Explanation:
Be³⁺ has only one electron since it has loss 3 electron and is therefore capable of having a line spectrum similar to hydrogen atom.