2007-07-23 07:25:36 · 9 answers · asked by lamide e 1 in Science & Mathematics ➔ Chemistry
mass number = proton number + neutron number
= 17 + 18
= 35
atomic number = proton number
thus atomic number = 17
and its Chlorine(Cl-1)
2007-07-23 07:36:21 · answer #1 · answered by zaheen797 3 · 1⤊ 0⤋
Atomic Number= number of protons
Therefore A=17
Mass Number= Number of Protons + Number of Neutrons
Mass Number=17+18
=35
2007-07-23 07:31:02 · answer #2 · answered by ITA-24 2 · 0⤊ 0⤋
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-
2007-07-23 07:34:26 · answer #3 · answered by maussy 7 · 0⤊ 0⤋
This Site Might Help You.
RE:
an ion has 17 protons, 18 neutrons, 18 electrons. write down the mass number, atomc number and its formula.?
2015-08-19 00:33:36 · answer #4 · answered by Elizabeth 1 · 0⤊ 0⤋
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
2007-07-23 07:38:35 · answer #5 · answered by chemist 1 · 0⤊ 0⤋
Atomic Number = 17
Atomic mass = 35
It's a Chlorine Ion ...Formula = Cl ¯
2007-07-23 09:28:49 · answer #6 · answered by Norrie 7 · 0⤊ 0⤋
17 Protons
2016-11-13 04:19:32 · answer #7 · answered by Anonymous · 0⤊ 0⤋
AN is 35, mass is 35
2007-07-23 07:28:26 · answer #8 · answered by kaliroadrager 5 · 0⤊ 0⤋
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.
2007-07-23 07:34:32 · answer #9 · answered by stephen r 3 · 1⤊ 1⤋
35, 17, Cl-
2007-07-23 07:36:05 · answer #10 · answered by ag_iitkgp 7 · 1⤊ 0⤋