a monatomic ion with a charge of -2 has an electronic configuration 1s22s22p63s2

Question

a monatomic ion with a charge of -2 has an electronic configuration 1s22s22p63s23p6 West cengagenow.com Use the References to access important values ifneeded for this ques 3A 4A SA 6A 7A He C N 0 F Ne P S CI Ar A monatomic ion with a charge of-2 has an electronic configuration of 1s 2s22p 3s 3p This ion is a( What is the chemical symool of the noble gas this ion is isoclectronic with? What is the formula of the ion? Try Another Vorsian 10 item attempts remaining Cengage Learning l Cengage Technical Support 26

Explanation / Answer

Since charge in negative, the ion is an anion

number of electron in anion = 2 + 2 + 6 + 2 + 6 = 18

the atomic number of Ar is 18

So, it is isoelectronic with Ar

the atomic number of element = 18 - 2 = 16

which is atomic number of S

so, the formula of ion is S2-

Answer:

anion

Ar

S2-

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