i think the answer is 9 i dont really know my friend told me
4!!!
Overview of Cobalt Atomic Number:27 Group: 9 Period: 4 Series: Transition Metals
Co
The most common oxidation number is +II. The charge and number for cobalt is +2.
Cobalt has an oxidation number of 3 (III) in the compound Co2O3.
Cobalt has as atomic number 27 and as symbol Co. The cobalt element is indeed used in making blue cobalt glass, among many other byproducts and applications.
Overview of Cobalt Atomic Number:27 Group: 9 Period: 4 Series: Transition Metals
No. Cobalt is in period 4, but iridium is in period 6.
Co
Yes, Cobalt is in Group 9, Period 4 on the periodic table, with an atomic number of 27, just above iron 26. Very definitely a metal.
The number of neutrons in any element is equal to mass number - atomic number. So,number of neutrons in cobalt is = 58 - 27 = 32. therefore, number of neutrons in cobalt is 32.
Cobalt is an element, and is a transition metal with atomic number 27.
The most common oxidation number is +II. The charge and number for cobalt is +2.
Cobalt
cobalt 541 c
Cobalt has an oxidation number of 3 (III) in the compound Co2O3.
Cobalt has as atomic number 27 and as symbol Co. The cobalt element is indeed used in making blue cobalt glass, among many other byproducts and applications.
Cobalt is a metallic element. Mass number of it is 58.