How many protons in platinum?

Answer 1

depends on isotope.

For the most common isotope Platinum-195 (33.5%), there are the following fermions:

1. electrons = 78
2. protons = 78
3. neutrons = 117
4. quarks (inside protons & neutrons) = 585

Total = 858

Also at any given moment there are an indeterminate number of bosons being interchanged between these 858 fermions to hold the atom together with the electromagnetic, weak, and strong forces:

• photons - electromagnetic
• W & Z bosons - weak
• mesons - strong (between protons and neutrons)
• gluons - strong (between quarks)

So even for an atom of one known isotope, the exact number of subatomic particles in it is unknown and cannot be known.

Answer 2

Platinum, Pt: 78 protons in the nucleus.

(Just look at the Periodic Table, its atomic number is 78.)

P.S. Stable isotopes are ones with 114, 116, 117, 118 or 120 neutrons.

T

Answer 3

The platinum atoms have 78 protons and electrons; the number of protons is different for each isotope:

Number of neutrons in a Pt isotope= Mass number of this isotope- 78

Answer 4

Platinum has 78 protons.