Chemistry HELP get 10 points?

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Chemistry HELP get 10 points?

2) Determine the number of protons, electrons, and neutrons in each of the following isotopes:
a. sodium-23 b. calcium 40 c. 64/29 Cu d. 108/47 Ag

2006-10-05 05:37:38 · 2 answers · asked by Lion 1 in Science & Mathematics ➔ Chemistry

2 answers

sodium: 11 protons & 11 electrons, 12 neutrons.

calcium:20 protons, 20 electrons & 20 neutrons.

copper:29 elctrons & protons, 35 neutrons

silver:47 protons & electrons, 61 neutrons

2006-10-05 05:47:37 · answer #1 · answered by karan s 3 · 0⤊ 0⤋

protons and electrons will be equal, becuase it said isotopes and not ions.

protons will always equal the atomic number

neutrons will be the atomic weight - atomic number

in sodium-23, the 32 is the atomic weight

2006-10-05 05:44:42 · answer #2 · answered by bequalming 5 · 0⤊ 0⤋