Using the periodic table, complete the following.
Element: oxygen
symbol: 02
Molecular weight: 32g
Mass of one mole: 32g
g/mol
Step-by-step explanation:
Oxygen
- It is placed in group 16 and period 2 rd .
- Its atomic number is = 8
- No. of protons = 8
- No. of electrons =8
- Electronic configuration=2,6
- Valence shell = L
- Valence electron = 6
- valency =-2
- Its isotopes are O-16,O-17,O-18
- It exist as diatomic gas (O₂)
- Its atomic mass is =16g
- Its molecular mass = 16 x 2 =32g
- It is supporter of combustion .
- It is necessary for survival .