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prohojiy [21]
3 years ago
5

Can someone please help me with this its about working safely in a lab

Chemistry
1 answer:
Greeley [361]3 years ago
8 0
I is Gas under pressure.
D is Corrosive.
F is Harmful to environment.
C is oxidizing*.
A is Explosive.
E is Toxic.
H is Long term health hazard.
G is Moderate health hazard.
...That's all I know

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Because the most common form of Nickel is Ni-58 while the most common form of Cobalt is Co-59, this means that Cobalt (which is number 27 on the periodic table) has 27 protons and 32 neutrons. Therefore 1 less proton but 2 more neutrons and hence has a greater mass than Nickel.

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If the half-life of a radionulide is 1 month, what percent remains after 4 months?
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6.25% of the original amount

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3 years ago
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\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

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