3 years ago

What emotional state is important to maintain while reporting an accident in the lab?

Chemistry

2 answers:

sergeinik [125]3 years ago

6 0

To keep calm and not go crazy

Julli [10]3 years ago

4 0

Make sure to stay calm and collected, do not run around or be panicked as it may create more chaos. The more calm the person stays the less hectic everything will be and the sooner the situation will be resolved.

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ololo11 [35]

Hello there!

To determine the fraction of the hydrogen atom's mass that is in the nucleus, we have to keep in mind that a Hydrogen atom has 1 proton and 1 electron. Protons are in the nucleus while electrons are in electron shells surrounding the nucleus. The mass of the nucleus will be equal to the mass of 1 proton and we can express the fraction as follows:

$Mass Fraction= \frac{mass 1 Proton}{mass H atom} = \frac{1,007276 u}{1,007825}=0,9995$

So, the fraction of the hydrogen atom's mass that is in the nucleus is 0,9995. That means that almost all the mass of this atom is at the nucleus.

Have a nice day!

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