An isotope contains 47 protons, 47 electrons, and 60 neutrons. what is the identity of the isotope? choose 1

The isotope is

Explanation:

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and neutrons that are present in an atom.

Mass number = Number of protons + Number of neutrons

General representation of an isotope is

where,

A = atomic mass

Z = atomic number

X = symbol of an atom

We are given:

Number of neutrons = 60

Number of protons = 47

Number of electrons = 47

Mass number = 60 + 47 = 107

Atomic number = 47

Hence, the isotope is

the grams   of   barium that   are in   2.3 x 10^23   atoms of barium   is   52.4 g (answer c)

    calculation

mass = moles   of ba   x molar   mass of ba

  molar mass of ba from periodic table=   137.3 g/mol

  use the   avogadro's law   constant   to   calculate the moles of barium

  that   is     1 mole =   6.02   x 10^23 atoms

                    ? moles = 2.3 x 10^23   atoms

by cross   multiplication

=(1 mole   x 2.3x 10^23 atoms)   / 6.02   x10^23 atoms)=   0.382   moles

mass   is therefore = 137.3   g/mol x 0.382 mol = 52.4 ( answer c)

explanation:

the answer is c.the valence of the atoms combine .