Neutrons in an Isoptope?

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How many neutrons are in the isotope Kr8436?

2007-08-26 10:37:08 · 3 answers · asked by 1337Haxor 2 in Science & Mathematics ➔ Chemistry

Kr(superscript)84(subscript)36?

2007-08-26 10:38:25 · update #1

Mass = protons + neutrons
Atomic Number = protons

Mass - Atomic Number = protons + neutrons - protons = neutrons

2007-08-26 10:47:58 · answer #1 · answered by qin137 2 · 0⤊ 0⤋

84 - 36 = 48

2007-08-26 17:50:36 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋

number of neutrons=mass number-atomic number=84-36=48 neutrons.

2007-08-26 23:02:49 · answer #3 · answered by Dr. Eddie 6 · 0⤊ 0⤋