How many protons neutrons and electrons are in a selenium atom?

Answer 1

Selenium (Se) has an atomic number of 34

which means in a balance atom Se will have 34 protons and 34 electrons

then Se has a mass of 79 so to get the neutrons we minus the protons from the mass and we get 45

final answer:

Neutrons: 45

Protons:34

Electrons: 34

Answer 2

An atom's atomic number tells us the number of protons it has in its nucleus. Checking a Periodic Table, we see that selenium/'s atomic number is 34. Thus, there are 34 protons in the nucleus of a selenium atom.

Answer 3

A selenium atom has 34 protons, 45 neutrons, and 34 electrons.

Answer 4

there are 34 protons 43 neutrons in selenium

Answer 5

Selenium has 34 protons, 34 electrons. the number of neutrons depends on the isotope. Se-79 isotope has 45 neutrons (79 - 34 = 45)

Answer 6

34 protons 43 neutrons in selenium

Answer 7

Selenium has 34 electrons.

Answer 8

A selenium atom has 34 protons.

Answer 9

Selenium has 34 protons.

Answer 10

34