Question

An ion formed from an atom has a 4 charge. the number of electrons present in the ion is 21 and the number of neutrons is 30. identify the element. zinc chlorine manganese scandium

Answer 1

The element with a +4 charge, 21 electrons, and 30 neutrons is manganese (Mn). The atom has 25 protons, which corresponds to manganese on the periodic table.

Step-by-step explanation:

To identify the element of an ion with a +4 charge, 21 electrons, and 30 neutrons, we start by determining the number of protons. Since atoms are neutral, the number of electrons equals the number of protons. In a charged ion, the number of protons minus the number of electrons gives the atomic charge. Here, the atomic charge is +4, so the number of protons is 21 + 4 = 25.

Having determined that there are 25 protons, we can consult the periodic table to identify the element as manganese (Mn), which has an atomic number of 25. Neutrons do not affect the identification of the element as they are neutral and do not change the charge of the atom. To conclude, the atom that forms a +4 ion with 21 electrons and 30 neutrons is manganese (Mn).