How many protons are there in Cl?

Question

how many protons are present in ^37 Cl

i.e. Cl with a molecular weight of 37 (or so i assume)

also say why

Answer 1

17

The number of protons does not change. Chlorine with different molecular weights only means that they have different numbers of neutrons.

Answer 2

Chlorine is number 17. That means that it always has 17 protons. It usually has a mass of 35, which would give it 18 neutrons. With mass 37, it has 20 neutrons. Cl 37 is another isotope of Chlorine. It is the neutron number that changes with a different isotopes. The mass on the periodic table has a decimal number, that is becausse it is a weighted average of all the isotopes, weighted by amount available.

Answer 3

the number of proton is just the atomic number, that is 17... the Cl isotope having AW of 37 has just 2 additional neutron....

best answer?

Answer 4

if the molecular weight is 37 then all you need to do is look at the periodic table to find the atomic number or number of protons. to find the number of neutrons you subtract the atomic number from the atomic weight.

Answer 5

The atomic number of an elements = number of protons=no.of electrons
Chlorine has an atomic number of 17, so the number of protons is 17, and the no.of electrons are also 17
the mass number of cholrine =35.5 which the totoal of masses of protons , neutrons and electrons in the atom

Answer 6

17

Because it's atomic number is 17. All elements have the same number of protons and electrons and this number is the same as the atomic number. The number of neutrons can vary.

Answer 7

17
The same as its atomic number.