As - Arsenic - periodic table of the elements

This metalloid has been known for its toxic properties since the 1200's.

Atomic number	-	33		Density	g/mL	5	.72
Atomic weight	u	74	.9216	Melting point	K	1091
Bonding radius	A	1	.2	Boiling point	K	886
Atomic radius	A	1	.33	Heat of vaporization	kJ/mol	34	.76
Ionization Potential	V	9	.81	Heat of fusion	kJ/mol	-
Electronegativity	-	2	.18	Specific heat	J/gK	0	.33
The oxide is mildly acidic.				Crystal are rhombohedral.
Electron configuration: [Ar] 3d¹⁰ 4s² 4p³

Other elements of the periodic table

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

H He

Li Be B C N O F Ne

Na Mg Al Si P S Cl Ar

K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr

Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe

Cs Ba La * Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn

Fr Ra Ac ** Rf Db Sg Bh Hs Mt 110 111 112 113

Lanthanides* Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Actinides ** Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr