1A8AH 2A3A 4A 5A 6A 7A HeBCNOF NLi Be1B 2B AI Si P S CI ArNa Mg 3B 48 58 6B 7B eK Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br KrRb Sr V 2r Nb Mo Te Ru Rh Pd Ag Ca In Sn Sb Te XeCS Ba La H Ta w Re Os Ir Pt Au Hg T Pb Bi Po At RnFr Ra Ac Rf HaCe Pr Nd Pm Sm Eu 6d Tb Dy Ho Er Im Yb LuTh Pa U Np Pu Am Cm Bk C Es Fm Md No LrAmonatomic ion with a charge of -2 has an electronic configuration of ls22s22p3s^3p6This ion is a(n)What is the chemical symbol of the noble gas this ion is isoelectronic with?What is the formula of the ion?

Question
Asked Nov 4, 2019
1A
8A
H 2A
3A 4A 5A 6A 7A He
BCNOF N
Li Be
1B 2B AI Si P S CI Ar
Na Mg 3B 48 58 6B 7B e
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr V 2r Nb Mo Te Ru Rh Pd Ag Ca In Sn Sb Te Xe
CS Ba La H Ta w Re Os Ir Pt Au Hg T Pb Bi Po At Rn
Fr Ra Ac Rf Ha
Ce Pr Nd Pm Sm Eu 6d Tb Dy Ho Er Im Yb Lu
Th Pa U Np Pu Am Cm Bk C Es Fm Md No Lr
Amonatomic ion with a charge of -2 has an electronic configuration of ls22s22p3s^3p6
This ion is a(n)
What is the chemical symbol of the noble gas this ion is isoelectronic with?
What is the formula of the ion?
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1A 8A H 2A 3A 4A 5A 6A 7A He BCNOF N Li Be 1B 2B AI Si P S CI Ar Na Mg 3B 48 58 6B 7B e K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr V 2r Nb Mo Te Ru Rh Pd Ag Ca In Sn Sb Te Xe CS Ba La H Ta w Re Os Ir Pt Au Hg T Pb Bi Po At Rn Fr Ra Ac Rf Ha Ce Pr Nd Pm Sm Eu 6d Tb Dy Ho Er Im Yb Lu Th Pa U Np Pu Am Cm Bk C Es Fm Md No Lr Amonatomic ion with a charge of -2 has an electronic configuration of ls22s22p3s^3p6 This ion is a(n) What is the chemical symbol of the noble gas this ion is isoelectronic with? What is the formula of the ion?

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check_circleExpert Solution
Step 1

Given, a monoatomic ion with charge of -2 has an electron configuration of 1s2 2s2 2p6 3s2 3p6

Since, the charge on the monoatomic ion is negative (-2) so, the ion is an anion.

Step 2

The electronic configuration of the ion given is 1s2 2s2 2p6 3s2 3p6 . There are total 18 electrons in the ion. The noble gas which has 18 electrons is Argon.

Electronic configuration of Argon (18) : 1s2 2s2 2p6 3s2 3p6

Therefore, the ion is isoelectronic with Argon (Ar).

Step 3

The ion is monoatomic, which means it contains only one atom and has a charge of -2.

The electronic configuration of the ion given is 1s2 2s2 2p6 3s2 3p6 .

There are total 18 electrons in the ion.

The atom in neutral state will have 2 electrons less than that of the i...

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