Question

An atom or ion has 43 neutrons , 36 protons, and 36 electrons. Identify the element symbol, and determine the mass number and charge for this atom or ion.

Answer 1

Answer:

Element name: Krypton

Symbol: Kr

Mass Number: 79 AMU

Charge: 0, electrons and protons cancel out.

ion: none, it is a halogen.

Explanation:

Krypton is the 36th element on the periodic table and has 36 protons. The mass is protons plus nuetrons so 36 + 43 is 79 AMU or Atomic Mass Units.