what is the physical make up of oxygen?

Answer 1

oxygen is an element meaning that it is just oxygen itself nothing makes it up. In nature oxygen is diatomic meaning that you will rarely find oxygen by itself it almost always combines with another oxygen atom to be O(sub 2) in nature. Same as hydrogen and helium and nitrogen.

Answer 2

Oxygen nuclei contain 8 protons. They were made inside red giant stars and thrown out of them in a supernova.
On the way out they picked up 8 electrons to make oxygen atoms
The shell model explains why oxygen atoms can make 2 covalent bonds. For example when 1 oxygen atom joins with 2 hydrogen atoms they form water molecules as well as many of the molecules of life.
We can think of oxygen atoms as a ball with 2 arms or as a shell with 2 holes.
In models oxygen atoms are usually colored red.
Oxygen atoms like to gain electrons to give themselves a hard outer shell. Oxygen is therefore an oxidizing agent, or electron acceptor.

Answer 3

General
Name, Symbol, Number oxygen, O, 8
Chemical series Nonmetals, chalcogens
Group, Period, Block 16, 2, p
Appearance colorless (gas)
very pale blue (liquid)

Atomic mass 15.9994(3) g/mol
Electron configuration 1s2 2s2 2p4
Electrons per shell 2, 6
Physical properties
Phase gas
Density (0 °C, 101.325 kPa)
1.429 g/L
Melting point 54.36 K
(-218.79 °C, -361.82 °F)
Boiling point 90.20 K
(-182.95 °C, -297.31 °F)
Critical point 154.59 K, 5.043 MPa
Heat of fusion (O2) 0.444 kJ·mol−1
Heat of vaporization (O2) 6.82 kJ·mol−1
Heat capacity (25 °C) (O2)
29.378 J·mol−1·K−1
Vapor pressure P/Pa 1 10 100 1 k 10 k 100 k
at T/K 61 73 90

Atomic properties
Crystal structure cubic
Oxidation states −2, −1
(neutral oxide)
Electronegativity 3.44 (Pauling scale)
Ionization energies
(more) 1st: 1313.9 kJ·mol−1
2nd: 3388.3 kJ·mol−1
3rd: 5300.5 kJ·mol−1
Atomic radius 60 pm
Atomic radius (calc.) 48 pm
Covalent radius 73 pm
Van der Waals radius 152 pm
Miscellaneous
Magnetic ordering paramagnetic
Thermal conductivity (300 K) 26.58 mW·m−1·K−1
Speed of sound (gas, 27 °C) 330 m/s
CAS registry number 7782-44-7
Selected isotopes
Main article: Isotopes of oxygen iso NA half-life DM DE (MeV) DP
16O 99.76% O is stable with 8 neutrons
17O 0.038% O is stable with 9 neutrons
18O 0.21% O is stable with 10 neutrons

Answer 4

Oxyegen, in its pure form, is an element and a gas at room tempeture