C Not Secure cvg com/iln/takeAssignment/ta do locator assignment-take Chapter 2:

Question

C Not Secure cvg com/iln/takeAssignment/ta do locator assignment-take Chapter 2: EOC uestion 1 pt 1 pt 7 pt 1 pt 1 pt 1 pt 1 pt This question has multiple parts. Work all the parts to get the most points. a Provide the symbol of the following monoatomic ion, given the number of protons and electrons 7 protons and 10 electrons (Express your answer as an ion.) uestion f5 uestion E estion b Provide the symbol of the following monoatomic ion, given the number of protons and eledfrons estion 8 estion 9 1 pt 20 protons and 18 electrons f pt (Express your answer as an ion.) estion 10 estion 11 estion 12 stion 13 Try Another Version 10 Item attempts remalining Bubmit Answer stion 14 stion 15 1pt

Explanation / Answer

a)

The atomic number is equal to number of protons in an atom

So 7 protons means an atom of an element is Nitrogen.

In neutral atom the number of electrons are also equal to number of protons.

But in this problem the atom contains 10 electrons means it gains three(03) electrons.so it gets three units negative charge.

N + 3e- -------------- N-3

so the symbol of an ion = N-3.

b)The number of protons = 20

The number of electrons = 18

An atom contains 20 protons means the atomic number is 20. i.e an atom is Calcium(Ca)

18 electrons means it looses two electrons.so it gets two units positive charge

so the symbol of an ion = Ca+2.

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