An ion has 17 protons, 18 neutrons, 18 electrons. write down the mass number, atomc number and its formula.?
Answer:
mass number = proton number + neutron number
= 17 + 18
= 35
atomic number = proton number
thus atomic number = 17
and its Chlorine(Cl-1)
AN is 35, mass is 35
HARLOT
Atomic Number= number of protons
Therefore A=17
Mass Number= Number of Protons + Number of Neutrons
Mass Number=17+18
=35
First atomic number is the number of protons.
If Z=17, the atom is chlorine Cl
with 18 neutrons the atomic mass is 17+18=35
so nucleus is Cl35 and has the ion has one more electron than proton it is a negative ion
SO 35Cl-
35.453 grams/mol. (molecular weight).
#17 on the periodic table
cl-
don't forget the minus after the cl, it is an ion, and has a negative charge.
35, 17, Cl-
Mass Number: Is the number of neutrons and protons which is 35
Atomic Number: Is the number of protons in the nucleus which is 17
It's formula is Cl^-1
Atomic Number = 17
Atomic mass = 35
It's a Chlorine Ion ...Formula = Cl ¯
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