Arsenic (As) - 33 on the Periodic Table | Periodic Table

Standard IUPAC: Arsenic • Symbol: As • Atomic Mass: 74.921595 u

Quick Factsheet: Arsenic (symbol As, atomic number 33) is element 33 on the periodic table of elements. It has a standard atomic weight of 74.921595 u and an electron configuration of [Ar] 4s2 3d10 4p3. On the periodic table, Arsenic is classified in period 4 and group Main.

1. Periodic Table Position of Arsenic (33 on the Periodic Table)

Element Arsenic has atomic number Z = 33, meaning it contains 33 protons in its atomic nucleus and 33 electrons in its neutral state. On the standard periodic table of elements, Arsenic is located in period 4 and group Main.

2. Electron Configuration & Oxidation States (Arsenic Charges & Configuration)

Full Electron Configuration: [Ar] 4s2 3d10 4p3

Common Oxidation States (Charges): -3c,2,3c,5c

3. Physical Properties & Atomic Mass (Arsenic Atomic Mass)

Element Arsenic has a standard atomic weight of 74.921595 u. Its melting point is 1090. K and boiling point is 887. K. The Pauling electronegativity value is 2.18.

Comprehensive chemical properties and data for Arsenic (As, Z=33).

Explore interactive 3D electron orbitals, isotopes, and properties on the periodic table: Open on Interactive Table 🚀

4. Related Elements in the Same Chemical Family

B (Z=5) Si (Z=14) Ge (Z=32) Sb (Z=51) Te (Z=52) At (Z=85)

5. Frequently Asked Questions about Arsenic (FAQ)

What is the chemical symbol and atomic number of Arsenic?

The chemical symbol of Arsenic is As and its atomic number is 33.

What is the atomic mass and electron configuration of Arsenic?

Arsenic has a standard atomic mass of 74.921595 u and ground-state electron configuration of [Ar] 4s2 3d10 4p3.

What periodic table group and period does Arsenic belong to?

Arsenic is located in period 4 and group Main on the periodic table of elements.

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