Chapter 3, Problem 11P

3-27 Answer true or false.

(a) For Group lA and Group 2A elements, the name of the ion each forms is simply the name of the element followed by the word ion; for example, Mg is named magnesium ion.

(b) W is named hydronium ion, and W is named hydride ion.

(c) The nucleus of H consists of one proton and one neutron.

(d) Many transition and inner transition elements form more than one positively charged ion.

(e) In naming metal cations with two different charges, the suffix-ous refers to the ion with a charge of +1 and _ic refers to the ion with a charge of +2.

(f) Fe₃² may be named either iron(III) ion or ferric ion.

(g) The anion derived from a bromine atom is named bromine ion.

(h) The anion derived from an oxygen atom is named oxide ion.

(i) HCO₃- is named hydrogen carbonate ion.

(j) The prefix bi- in the name “bicarbonate” ionindicates that this ion has a charge of −2.

(k) The hydrogen phosphate ion has a charge of +1, and the dihydrogen phosphate ion has a charge of +2.

(l) The phosphate ion is PO₃^4-.

(m) The nitrite ion is NO₂, and the nitrate ion is NO₃.

(n) The carbonate ion is CO, and the hydrogen carbonate ion is HCO₃^-.