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3 years ago

Rubidium has a mass number of 87 and an atomic number of 37. how many electrons does it have?

Chemistry

2 answers:

Elis [28]3 years ago

5 0

Rubidium has 37 elections. there are multiple other sources you could use too confirm this. :-)

Aleksandr [31]3 years ago

5 0

Rubidium's (Rb) Z = 37
Z ( atomic number ) means , No: of proton or no: of electrons.
.: Number of electrons = 37

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Ghella [55]

Answer:

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Explanation:

An ideal gas is a theoretical gas that is considered to be made up of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

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where R is the constant of ideal gases.

In this case:

P= 2 atm
V= ?
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R= 0.0821 $\frac{L*atm}{mol*K}$
T=33 °C= 306 °K (being O°C= 273°K)

Replacing:

2 atm* V= 0.223 moles*0.0821 $\frac{L*atm}{mol*K}$ * 306 K

Solving:

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