Answer:
(V) 1s 2 2s 2 2p 6 3s 2 3p 5
Explanation:
Electron Affinity can be defined as the energy associated with a neutral atom, when an electron is added to form a negative ion.
1s 2 2s 2 2p 6 3s 2 3p 5 , is the electronic configuration of Chlorine.
The electron affinity is positive because it is an exorthermic reaction, meaning that, energy was released during the addition of an electron to the atom.
Cl (g) + e- -------> Cl- (g) = -349KJ/mol
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
cos x = adjacent side / hypotenuse
cos 60 = 9√2/2 / x
1/2 = 9√2/2 / x
x = 9√2
tan x = opposite side / adjacent side
tan 60 = y / 9√2/2
√3 = 2y / 9√2
9√6 = 2y
y = 9√6/2
Answer:
42
Step-by-step explanation:
To receive this answer:
- Divide the <u>30 orange marbles</u> with the <u>5 orange marbles</u>.
--This will give you 6
2. Multiply 6 with 7.
--This will then give you 42.
- Therefore, (with being checked...) 42 is the correct answer.
-3(3)+6312
-9+6312
6303
The answer is 6303. Hope this helps!