Answer:
in step by step
Step-by-step explanation:
Phosphorus - 15-2-8-5
magnesium 12-2-8-2
argon 18-2-8-8
silicon 14-2-8-4
The answer is C,
I think that’s eighth
Answer: 65
Step-by-step explanation:
Answer:
108.82in²
Step-by-step explanation:
The formula for the surface area of the square pyramid is,
⇒ <u>h</u> represents the height which is 8in
⇒ <u>a</u> represents the base edge which is 5in
<em>Plug in:</em>
A = 108.815