Flourine (F), chlorine (Cl), bromine (Br), and iodine (I) are all well-known halogens. These halogens are all on the seventh column of the periodic table. Why are these halogens apart of the same group? 1.They have the same number of atomic orbitals.
2.They have seven electrons in the outer shell.
3.They have the same atomic number.
4.They are the same size.

sup

step-by-step explanation:

a

step-by-step explanation:

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: