p-block

Chemical elements in the p-block

Group	13	14	15	16	17	18
Period
2	5 B	6 C	7 N	8 O	9 F	10 Ne
3	13 Al	14 Si	15 P	16 S	17 Cl	18 Ar
4	31 Ga	32 Ge	33 As	34 Se	35 Br	36 Kr
5	49 In	50 Sn	51 Sb	52 Te	53 I	54 Xe
6	81 Tl	82 Pb	83 Bi	84 Po	85 At	86 Rn
7	113 Uut	114 Uuq	115 Uup	116 Uuh	117 Uus	118 Uuo

The p-block of the periodic table of the elements consists of the last six groups except helium (which is located in the s-block). In the elemental form of the p-block elements, the highest energy electron occupies a p-orbital. The p-block contains all of the nonmetals (except for hydrogen and helium which are in the s-block) and semimetals, as well as the post-transition metals.^{[citation needed]}

The groups of the p-block are:^{[citation needed]}

• 13 (IIIB, IIIA): Boron group
• 14 (IVB, IVA): Carbon group
• 15 (VB, VA): Nitrogen group (or pnictogens)
• 16 (VIB, VIA): Chalcogens
• 17 (VIIB, VIIA): Halogens
• 18 (Group 0): Noble gases (excluding helium)

See also

• Electron configuration

Explanation of above periodic table slice:

atomic number in red are gases

atomic number in black are solids

atomic number in green are liquids

solid borders are primordial elements (older than the Earth)

dotted borders are radioactive, synthetic elements

dashed borders have no isotopes older than the earth