2006-09-23 11:25:48 · 7 answers · asked by leeannc313 1 in Science & Mathematics ➔ Chemistry
The atomic number of Mn55 is 25, it is the most stable isotope. There are 25 protons in Mn, and 30 neutrons in Mn55; Mn53 is long lived isotope it has of course 25 protons but only (53-25) 28 neutrons.
2006-09-23 11:54:19 · answer #1 · answered by kbarnus 2 · 0⤊ 1⤋
Mn+2 has atomic number of 25. thus it has 25 proton...
in an element the number of proton is equal to the number of electron. but since the Mn has a charge of +2 then two electrons are subtracted thus the number of electron is 23.
Mn has mass number of 55
mass no. = no. proton + no. neutron
no. neutron = mass no. - no. proton
=55 - 25 = 30...
best answer?
2006-09-23 20:31:01 · answer #2 · answered by teroy 4 · 1⤊ 0⤋
Mn2+ denotes the charge of your element (a.k.a the loss of 2 e')
Since, your question does not regard electrons, the charge is pointless.
Now, Manganese's atomic number is 25. (this is on your periodic table), since you know that the atomic number = the # of protons, your proton count is 25.
Moreover, Manganese's mass number is 55 (again on your periodic table). So, subtract atomic number from mass number to get # of neutrons.
So, 55-25= 30
Protons=25
Neutrons= 30
I hope this helps!
2006-09-23 13:14:14 · answer #3 · answered by Trish 2 · 0⤊ 0⤋
Well, manganese has atomic number 25 so it's got 25 protons. It's missing 2 electrons so it has 23 electrons.
2006-09-23 11:54:38 · answer #4 · answered by zee_prime 6 · 0⤊ 0⤋
p -2 n-1
2006-09-23 11:27:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋
it is 2 protons and 7 neutrons
2006-09-23 11:42:16 · answer #6 · answered by Anonymous · 0⤊ 2⤋
Funny, I only worked this out yesterday at tea time.
I made the answer "Salted Peanuts" but I could be wrong.
2006-09-23 11:28:45 · answer #7 · answered by Anonymous · 1⤊ 1⤋