Question

Part B

Indicate the number of unpaired electrons for following: [noble gas]ns2np5

Express your answer as an integer.

Part C

Identify the group of elements that corresponds to the following generalized electron configuration: [noble gas]ns2(n?1)d2

Incorrect; Try Again; 5 attempts remaining

Part D

Indicate the number of unpaired electrons for following: [noble gas]ns2(n?1)d2

Express your answer as an integer.

Part E

Identify the group of elements that corresponds to the following generalized electron configuration: [noble gas]ns2(n?1)d10np1

Incorrect; Try Again; 5 attempts remaining

Part F

Indicate the number of unpaired electrons for following: [noble gas]ns2(n?1)d10np1

Express your answer as an integer.

Part G

Identify the elements that correspond to the following generalized electron configuration: [noble gas]ns2(n?2)f6

Express your answer as the element symbol. If there is more than one answer, separate them by a comma.

Part H

Indicate the number of unpaired electrons for following: [noble gas]ns2(n?2)f6

Express your answer as an integer

Answer 1

Part B

Indicate the number of unpaired electrons for following: [noble gas]ns2np5

Express your answer as an integer.

ns2 = paired, since 1 spin is 1/2 and other -1/2

np5 = 4 -> paired as  1/2 and other -1/2; the last electron is unpaired, only +1/2

then, choose 1 electron unpaired

Part C

Identify the group of elements that corresponds to the following generalized electron configuration: [noble gas]ns2(n−1)d2

ns2 = filled, then this cna be goru p1 or 2

if (n-1)d2 group --> this is Group 4B, or the 2nd row of transition metals

Part D

Indicate the number of unpaired electrons for following: [noble gas]ns2(n−1)d2

Express your answer as an integer.

the number of unpaired electorns in transition metals with only 2 electrons then:

5 orbitals --> first 2 electrons will be unpaired

Part E

Identify the group of elements that corresponds to the following generalized electron configuration: [noble gas]ns2(n−1)d10np1

this is p1 elements, therefore, must be 3A group, family of Boron/aluminium... etc

Part F

Indicate the number of unpaired electrons for following: [noble gas]ns2(n−1)d10np1

Express your answer as an integer.

unparied electorns in here are --> only 1, since the p1 electron --> 1 electrons is present, by definitoin has no pari

n = 1

Part G

Identify the elements that correspond to the following generalized electron configuration: [noble gas]ns2(n−2)f6

Express your answer as the element symbol. If there is more than one answer, separate them by a comma.

these are the famous "f-block2 lanthanides

Part H

Indicate the number of unpaired electrons for following: [noble gas]ns2(n−2)f6

Express your answer as an integer

if f6 --> then it has already filled 6 electron from:

f = 18 electorns

9 electrons mus tbe filled first, then all 6 electrons are unpaired