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RSB [31]
3 years ago
7

How many neutrons are in an arsenic atom? I belive there are 42, but better safe than sorry!

Physics
1 answer:
galina1969 [7]3 years ago
5 0
Arsenic is Element Number 33 ... it has 33 protons in its nucleus.

You're correct that the stable isotope of the atom is the one with
42 neutrons, for a total Atomic Weight of 75.

Atoms of Arsenic also exist with 41 neutrons and 40 neutrons
in their nucleus, but those are unstable.

The nucleus with 41 neutrons (Atomic Weight = 74) has a 50% chance
of falling apart and becoming a nucleus of Germanium within 80 days.

The nucleus with 40 neutrons (Atomic Weight = 73) has a 50% chance
of falling apart and becoming a nucleus of Germanium within 18 days.

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mel-nik [20]

Answer:

A) s=1/2at^2

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3 0
3 years ago
Two point charges of +2.50 x 10^-5 C and -2.50 x 10^-5 C are separated by 0.50m. Which of the following describes the force betw
mr Goodwill [35]

Answer:

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Thanks.

5 0
3 years ago
Calculate the velocity of an apple that falls freely from rest and drops for 3.5 seconds.
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6 0
2 years ago
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oksian1 [2.3K]
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3 years ago
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