5, 4, 3, 2
2007-01-15 03:15:03 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
3
Boron Electronic configuration : 1s2 2s2 3p1
The first shell K can accomodate only 2 electrons
Since Boron has 5 protons ...it has to have 5 electrons
With 2 in the first shell.......there will be 3 in the second shell!
2007-01-15 03:17:33 · answer #1 · answered by Som™ 6 · 0⤊ 1⤋
boron has 5 proton therefore it has 5 electron,( unless it is an ion: a charged particle) a electrons are arranged 2:8:8:18
so for boron having 5 electrons will be 2:3 2 electrons in the first shell and 3 in the 2nd shell
2007-01-15 03:21:19 · answer #2 · answered by Anonymous · 0⤊ 0⤋
2
2007-01-15 03:17:47 · answer #3 · answered by Alexx 2 · 0⤊ 1⤋
Boron has 3 electrons in its last shell. It contains its 2 elctrons in s orbital(paired) and 1 electron in p orbital
2007-01-15 03:20:08 · answer #4 · answered by Tariq M 3 · 0⤊ 0⤋
They are 2 electrons on shell K (first shell)
So, there are 3 electrons on shell L (second shell)
2007-01-15 03:19:55 · answer #5 · answered by maussy 7 · 0⤊ 0⤋
5 electrons all together. Two electrons will fill up the first shell leaving 3 electrons for the second.
2007-01-15 03:18:01 · answer #6 · answered by ecolink 7 · 0⤊ 0⤋
should be 3. I think the first shell has 2 and the second up to 8. Not 100% though, it's been awhile.
2007-01-15 03:18:08 · answer #7 · answered by scruffy 5 · 0⤊ 0⤋
boron's atomic is 5
first shell K can contain MAX of 5 shells
from second it can contain 8
therefore in 2nd it can contain 3 elements.
2007-01-15 03:19:50 · answer #8 · answered by srinu710 4 · 0⤊ 0⤋
3 electrons
There is always an equal amount of protons and electrons.
The first energy level holds 2 electrons.
Therefore, the second energy level will hold 3.
2007-01-15 03:19:43 · answer #9 · answered by Jacques 5 · 0⤊ 0⤋
Another question to give 10 points to a favourite.
2007-01-15 03:31:23 · answer #10 · answered by Phool 1 · 0⤊ 0⤋