The atomic number above the element is the number of protons inside of it.
That’s number 1 so answer is 169.
Number 2 is H because in the description above it states it is highly reactive
Step-by-step explanation:
-22 = 25 - 3x
-22 -25 = 3x
3x = -47
x = -47/3
x = -15.6
Answer:
11.3
Step-by-step explanation:
Take the shadow of the stop sign and divide it by its height.
8÷3.2=2.5
Multiply the answer by the bushes shadow.
2.5x4.5=11.3
