A scientist repeats the Millikan oil-drop experiment in a different galaxy and the charge on the drops is measured in a unit called the electrino (el). The scientist obtains data for four drops. Drop Calculated charge (el)
A 5.52×10−14 el
B 4.14×10−14 el
C 5.06×10−14 el
D 2.76×10−14 el
Given the results of the scientist's experiment, determine the charge on an electron in electrinos.

Given that the charge on an electron is 1.60×10−19 C , determine the conversion factor between electrinos and coulombs.
1 C= ? el

- 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

the awnser is group 12