Question

Be sure to answer all parts.

How many protons, neutrons, and electrons are in the following isotope of cobalt:"Co?
(a) Protons
(b) Neutrons
(c) Electrons

Answer 1

Symbol Co

Atomic Number 27

Atomic Mass 8.9332 atomic mass units

Number of Protons 27

Number of Neutrons 32

Number of Electrons 27

Melting Point 1495.0° C

Boiling Point 2870.0° C

Density 8.9 grams per cubic centimeter

Normal Phase Solid

Family Transition Metal

Period Number 4

Cost $21 per 100 grams