Contents
Key Stage 2
Meaning
Key Stage 3
Meaning
Arsenic is a Group 5 metalloid element, on the Periodic Table, with an atomic number of 33.
About Arsenic
- Arsenic has the chemical symbol As.
Atomic Structure
- Arsenic as 33 protons and 42 neutrons in its nucleus giving it an Atomic Number of 33 and an atomic mass of 75.
- Arsenic is in Period 4 of the Periodic Table because it has 4 electron shells.
Properties
- Arsenic is a shiny solid at room temperature.
Key Stage 4
Meaning
Arsenic is a Group 5 metalloid element, on the Periodic Table, with 33 protons in the nucleus.
About Arsenic
- Arsenic has the chemical symbol As.
Atomic Structure
- The most stable isotope of Arsenic has 42 neutrons in its nucleus giving it an atomic mass of 75.
- Arsenic is in Period 4 of the Periodic Table because it has 4 electron shells.
Properties
- Arsenic is a metalloid element so in some conditions it is an electrical conductor.
- Arsenic is a shiny solid at standard temperature and pressure and has a high melting point.