Atoothpaste company developed a new product. on the package, they printed the claim, "5 out of 5 dentists recommend this product! " should a consumer trust this statement? a. no; they didn't explain the word "recommend." b. no; they might have asked only 5 dentists. c. yes; 5 out of 5 dentists means that every dentist recommends the product. d. yes; advertising can always be trusted.

It's B that's correct because the other dentists might have different point of views on this product...

- 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