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melisa1 [442]
3 years ago
7

how many protons electrons and neutrons does a atom with the atomic number 50 and mass number 125 contain?

Chemistry
1 answer:
Aleonysh [2.5K]3 years ago
4 0

Answer:

Protons: 50, Neutrons: 75, Electrons: 50

Explanation:

The atomic number, which in this case is 50, determines the number of protons and electrons an atom has. Take the atomic number and subtract the number of protons to get the number of neutrons.

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If 4.50 g of (nh4)2so4 is dissolved in enough water to form 250. ml of solution, what is the molarity of the solution?
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Step by Step Explanation:
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A student sees an absorbance a=1.140 for his solution that has a concentration of c=1.50*10-4 m using 0.50 cm cuvette. what is t
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Rewriting the formula as per molar extinction coefficient -

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Performing division to find the value of molar extinction coefficient

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Which is a set of valid quantum numbers?
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