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3 years ago

Write the electron configuration (ground and excited states) for element with atomic number 16 ?

Chemistry

1 answer:

Talja [164]3 years ago

3 0

2, 8,6 because it has to be in a configuration of 2,8,8

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29.3g CO2 and 20.8g H2O

docker41 [41]

Answer:

the most best answer is 50.1 you never find such type of answer

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2 years ago

Which has more atoms, 12.0 mol of C or 12.0 mol of Ca?

mr_godi [17]

Answer:

they are equal.

Explanation:

1 mol = 6.022 × 10^23 (Avogadro's constant), which is the number of atoms in 1 mol of any element. Doesn't matter what their atomic mass is, although, of course, 1 mol of carbon weighs less than 1 mol of calcium, but its because their mass is different, but the point is, in 1 mol of any element there is 6.03*10^23 atoms

This is like saying, what weighs more, 10 kg of feathers or 10 kg of metal

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2 years ago

Two protons and two neutrons are released as a result of this reaction.

Murljashka [212]

Answer: The particle released in the given reaction is one alpha particle

Explanation:

In a nuclear reaction, the total mass and total atomic number remains the same.

For the given fission reaction:

$^{222}_{86}\textrm{Rn}\rightarrow ^A_Z\textrm{X}+^{218}_{84}\textrm{Po}$

To calculate A:

Total mass on reactant side = total mass on product side

222 = A + 218

A = 4

To calculate Z:

Total atomic number on reactant side = total atomic number on product side

86 = Z + 84

Z = 2

The isotopic symbol of unknown element is $_{2}^{4}\textrm{He}$ . Another name of helium atom is alpha particle.

Hence, the particle released in the given reaction is one alpha particle

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3 years ago

Read 2 more answers

Please help soon!!! About Chemistry and noble gas notations.

Svetach [21]

Answer:

play video games all days

Explanation:

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2 years ago

The liter is a metric unit for

Nataly_w [17]

Answer:

the answer is d. volume

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3 years ago