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Phantasy [73]
3 years ago
9

The atomic number is the number of _____ an atom

Chemistry
2 answers:
Sveta_85 [38]3 years ago
5 0
The atomic number is the number of protons of an atom.
ololo11 [35]3 years ago
3 0
The Rutherford–Bohr model of the hydrogen atom (Z = 1) or a hydrogen-like ion (Z > 1). In this model it is an essential feature that the photon energy (or frequency) of the electromagnetic radiation emitted (shown) when an electron jumps from one orbital to another, be proportional to the mathematical square of atomic charge (Z2). Experimental measurement by Henry Moseley of this radiation for many elements (from Z = 13 to 92) showed the results as predicted by Bohr. Both the concept of atomic number and the Bohr model were thereby given scientific credence. The atomic number is the number of _z_ an atom.
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3 0
3 years ago
What is the molarity of a solution in which 25.3 grams of potassium bromide is dissolved in 150. mL of solution?
irga5000 [103]

Answer:

~1.417M

Explanation:

Molarity=(number of moles of solute)/(litres of solution)

In this case, we need to find moles of potassium bromide.

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moles=(mass/molar mass)

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Molarity=(0.2126)/(150/1000)

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Hope this helps:)

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3 years ago
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solniwko [45]

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