Question

View History Bookmarks Window Help Sat 10-45 AM digital wwooncom enment #8- (Graded)-Fal... 11/20/19 alo198m 2 Question (1 point) See page 3 1st attempt See Periodic Table See Hir Name and define the four quantum numbers that identify the highest energy electron in a francium. Fr, atomic orbital Symbol Value Principal quantum number Angular momentum quantum number Magnetic quantum number me Spin magnetic quantum number < 02/17 > O OF 17 QUESTIONS COMPLETED MacBook Air K

Answer 1

Answer-

Quantum Numbers for Highest Energy Electron in Francium = ?

We know that,

Noble Gas Electronic Configuration of Francium is [Rn]7s¹

Highest energy Electron is located in 7s orbital.

So, Principle Quantum number (n) is 7.

Now,

Seventh orbital have following subshells [l = 0 to n-1]

l = 0, l = 1, l = 2, l = 3, l = 4, l = 5, l = 6

But our electron is in s Subshell.

So, Angular Momentum Quantum Number (l) is 0.

Now,

Magnetic Quantum Number (m_l) ranges from -l to l.

Here l = 0 ,

So, Magnetic Quantum Number is 0.

Spin quantum number can be either +1/2 or -1/2.

So,

	Symbol	Value
Principle Quantum Number	n	7
Angular Momentum Quantum Number	l	0
Magnetic Quantum Number	ml	0
Spin Magnetic Quantum Number	ms	+1/2