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3 years ago

Please please help please

Chemistry

1 answer:

gregori [183]3 years ago

7 0

Answer:

75 neutrons and 50 protons and 50 electrons

Explanation:

Atomic number represents the number of protons and it's the same number for electrons

50 protons and 50 electrons

the mass number represents the number of neutrons and protons

125-50=75 neutrons

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The atomic mass of carbon -13 is 13. It has six protons. How many neutrons does the isotope have

marishachu [46]

Answer:

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Explanation:

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3 years ago

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Answer:

Check the explanation

Explanation:

When talking about our universe there are 5 d orbitals. The element of first transition series moves away from the universal principles of Hund's rule and Aufbav's principle. So in order to attain stability these elements tend to form half or full filled orbitals.

In our universe the ground state electronic configuration of sixth transition metal, Iron (Fe) : [Ar] $3d^{6} 4s^{2}$

and the electronic configuration of seventh transition metal, Cobalt (Co) : [Ar] $3d^{7} 4s^{2}$

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Ground state electronic configuration of sixth and seven transition element.

Sixth transition metal: [Ar] $3d^{7} 4s^1 or [X] 3d^{7} 4s^1$

Seventh transition metal: [Ar] $3d^{7} 4s^{2}or [X] 3d^{7} 4s^{2}$

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2 years ago

How many liters of hydrogen gas is formed from the complete reaction of 15.9 g c? assume that the hydrogen gas is collected at a

ololo11 [35]

C + H2O -> H2 + CO
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=> n(H2) = 1.325 mol
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PV = nRT
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V = (1.325 x 0.082 x 360)/1 = 39.114 (L)

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3 years ago

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<h2>Answer with explanation </h2>

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