In halogens, fluorine has fewer electrons and a weaker dispersion force as compared to iodine. which statement is true regarding fluorine and iodine?
a.
fluorine is a gas and iodine is a solid at room temperature.
b.
fluorine is liquid and iodine is gas at room temperature.
c.
both fluorine and iodine are gases at room temperature.
d.
both fluorine and iodine are solids at room temperature.
e.
fluorine is solid and iodine is liquid at room temperature.

Fluorine is a gas and iodine is a solid at room temperature.

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

yes

explanation:

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