Question

An atom is determined to contain 12 protons, 10 electrons, and 12 neutrons. What are the mass number and charge of this atom or ion?

mass number: 24, charge: +2
mass number: 22, charge: neutral
mass number: 34, charge: -2
mass number: 34, charge: +2

Answer 1

@Nnesha

Answer 2

@ganeshie8

Answer 3

mass number = number of protons+number of neutrons

Here number of protons is large than number of electrons.therefore some positive charge is present on the atom whose magnitude is equal to number of protons - number of electrons.

Answer 4

I'm stuck between A and D

Answer 5

number of protons + number of neutrons = mass number
number of protons=12
number of neutrons=12
mass number=12+12

Answer 6

@jiteshmeghwal9 it's A! thanks for explaining!