Periodic System for Chemists

Your periodic table, always with you.

Use it offline. Find elements quickly. Keep favorites and personal notes on iPhone and iPad.

Nonmetals

Elements that are poor conductors of heat and electricity. Can exist in various states at room temperature.

Discovery Period: 18th to 20th century

Characteristics

  • • Poor conductors
  • • Brittle in solid state
  • • Gain electrons in reactions
  • • Form acidic or neutral oxides
  • • Essential for life (C, N, O, P, S)
  • • Various physical states at STP

Elements (7)

1
H
Hydrogen
6
C
Carbon
7
N
Nitrogen
8
O
Oxygen
15
P
Phosphorus
16
S
Sulfur
34
Se
Selenium

iPhone & iPad

Your periodic table, always with you.

  • Access element data offline, in the lab or in class.
  • Find elements quickly by name, symbol, or atomic number.
  • Save favorite elements and add your own notes.
Published App Store screenshots: periodic table, element details, and search (English).