Question

The formula of a salt is XCl2. The X ion in this salt has 20 electrons. The metal X is ________.

Answer 1

titanium

Step-by-step explanation:

The ion has a charge of +2 since each of the chrlorine atoms have a charge of -1. if x has 20 electrons, the it must have 22 protons to get a charge of +2. The proton number defines the element, so the element with 22 protons is titanium.