The answer to this problem is
P - phosphorus
Answer:
The answer to your question is below:
Explanation:
1.- Atomic number, elements in the periodic table increase their atomic number from left to right.
2.- A weighted average of the masses of an element's isotopes.
3.- Most metals are brittle, Metals are not brittle, Non metals are brittle.
4.- Most reactive nonmetals, that is because halogens have 7 valence electrons that means that only need one electron to be stable.
5.- Amu, is the abbreviation of Atomic mass unit.
The sun sending out electromagnetic rays
Francium is the heaviest of the alkali metals, with an atomic mass of 223 grams.
Answer:
The force of the atmosphere 200 KN.
Explanation:
Pressure is the ratio of force applied to the area to which the force is applied.
i.e Pressure = 
But, Pressure = 100000 pa (100000 N/ 
), and surface area = 2.0
Thus,
100000 = 
⇒ Force = 100000 x 2.0
= 200000
Force = 200 KN
The force of the atmosphere 200 KN.
