study material-chemistry
Some very basic and interesting facts about Chemistry
1) Largest atomic size - cesium
2)lowest atomic size - H
3)Largest Anion - At -
4)smallest anion - F -
5)Lowest electronegativity - Cs
6)Lowest electron affinity - noble gases
7)Metals having highest b.pt and m.pt. = mercury and tungsten
8)Non metal having highest m.pt and b.pt = Helium
9)Most reactive solid ekement - Li
10)Most reactive liquid element - Cs
11)Most reactive gaseous element - Flourine
12)Most stable element - Tellurium (half life = 2 * 1021 )
13)Electro-ive element next to flourine - Oxygen
14)Grp containing max. no. of gases - 18th
15)total no. of gaseous element in periodic table - 11
(H , He , N , O , F , Ne , Cl , Ar , Kr , Xe , Ra)
16)TOTAL NO. OF LIQUID elements - 6
(Ga , Br , Cs , Hg , Fr , EKa)
17)total no. of solid elements = 89 (can't name them here heheee)
18)Liquid radioactive element - Francium
19)N.metal wid highest M.Pt - Carbon
20)Metal wid highest valency = Plutonium
21)highest tensile strength - Boron
22)Most ionic compound = CsF
23)Strongest base = Cs (OH)
24)Strongest basic oxide = Cs2 O
25)Most conducting metal = Ag
26)insulating = Pb
27)Elements wich are amphoteric in nature = Al , Zn , An , Pb
28)N.METALS having ,etallic lusture = Iodine and Graphite
29)Naturally occuring heaviest element = uranium
30)most conducting N.metal - C