Chemistry, asked by happytoliveandlove, 6 months ago

can anyone send me more questions to find protons, neutrons, electrons, atomic no.,mass no.?
here is an example.
please send the correct answer.
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Answered by PRASENJITGAMER
2

Answer:

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Answered by rasneet25
1

1.Element 'X' contains 9 protons, 10 electrons and 11 neutrons. What is 'X'?

2.Sulphur has an atomic number of 16 and a mass number of 32. State the number of protons and neutrons present in the nucleus of sulphur.

Answer:

Protons → Atomic number = 16 = P

Number of Neutrons = A – P = 32 – 16 = 16

3.Give a simple diagram to show the arrangement of the electrons in an atom of sulphur.

Answer:

In sulphur atom.

Number of electrons = P = e = 16

Elements X, Y, Z have atomic numbers 6, 9 and 12 respectively. Which one :

forms anion – negative ion ;

forms cation – positive ion ;

has 4 electrons in the outermost orbit. [Y, Z, X]

Answer:

Atomic number of

X = 6 = number of electrons (2, 4)

∴ X has 4 electrons in outermost orbit.

Y = 9 = number of electrons (2, 7)

∴ Y form anion = negative ion

Z = 12 = [2, 8, 2]

∴ Z forms cation – positive ion.

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