A neutral atom in the ground state has four electrons in its fifth and outermost principal energy level. What element is it?

Chemistry

1 answer:

Zepler [3.9K]3 years ago

7 0

Answer:

Tin

Explanation:

Tin is an element which belongs to the carbon family in the periodic table. It lies in group 14 of the periodic table i.e. IV a.

The symbol of Tin is Sn. Tin has 50 electron in total. Its atomic number is 50. The 50 electrons of tin are divided in its five energy shells. The outer most or the valence shell contains 4 electrons in the ground state.

The number of electrons present per shell in tin is : 2, 8, 18, 18, 4.

The electronic configuration of tin is : [Kr] 4d¹⁰5s²5p²

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trapecia [35]

Answer:

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Explanation:

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Before balanced Left side.

Cl-2

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Before balanced right side.

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That means we need to increase Hydrogen, Chlorine and Oxygen on the right for sure and see how that affects the equation. You can keep adding the Coefficients until the # of elements begin to match on each side.

(I tried to balance this equation, it doesn't work, there is too much on the reactants side for what the product is.)

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3 years ago

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pickupchik [31]

Answer:

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Explanation:

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2 years ago

has a standard free‑energy change of − 3.59 kJ / mol at 25 °C. What are the concentrations of A , B , and C at equilibrium if, a

Mamont248 [21]

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Explanation:

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