Answer:
the biological levels of organization of living things arranged from the simplest to most complex are organelle , cells , tissues , organs , organ system , organism , population , communities , ecosystem , and biosphere....
Explanation:
mark me as a brainlist
1. According to Rutherford and soddy's law of Beta emission:

3. According to Rutherford and soddy's law of Alpha emission:

4. The process in which two or more light nuclei are combined to form a single nucleus with the release of tremendous amount of energy is called a nuclear fusion. The inner core of Sun is at very high temperature and is suitable for fusion. In fact the source of energy of Sun and other stars is nuclear fusion reactions.
Well, there’s some pretty poor choices out there, but I think chlorine trifluoride would be the worst since it would burn everything it touched.
Answer:
To make 500 mL of a solution of PPP 1% w/v you need 5g
Explanation:
A percent w/v solution is calculated with the following formula using the gram as the base measure of weight (w):
% w/v = g of solute/ mL of solution × 100
A 1% w/v means that you have 1 g of PPP per 100 mL of solution
Thus, if you need to make 500 mL of solution you will need 5 g of PPP.
I hope it helps!
Atomic number
26
Atomic mass
55.85 g.mol<span> -1</span>
Electronegativity according to Pauling
1.8
Density
7.8 g.cm-3 at 20°C
Melting point
1536 °C
Boiling point
2861 °C
<span>Vanderwaalsradius </span>
0.126 nm
Ionic radius
0.076 nm (+2) ; 0.064 nm (+3)
Isotopes
8
<span>Electronic shell </span>
[ Ar ] 3d6 4s2
Energy of first ionisation
761 kJ.mol<span> -1</span>
Energy of second ionisation
1556.5 kJ.mol<span> -1</span>
Energy of third ionisation
2951 kJ.mol<span> -1</span>
Standard potential
- o.44 V (Fe2+/ Fe ) ; 0.77 V ( Fe3+/ Fe2+ )
Discovered by
The ancients
<span>
Read more: <span>http://www.lenntech.com/periodic/elements/fe.htm#ixzz4a5WaFZtx</span></span>