The nucleus of an atom of Cobalt-58 contains:

1. 27 protons and 31 neutrons

2. 27 protons and 32 neutrons

3. 59 protons and 60 neutrons

4.60 protons and 60 neutrons

a) Calculate the mass of Li formed by electrolysis of molten LiCl by a current of 8.2 104 A flowing for a period of 14 hr. Assume the electrolytic cell is 70. percent efficient.

What do you call the gravitational attraction between you and the earth?

A chemist in a galaxy far, far away performed the Millikan oil drop experiment and got the following results f? 1.64 10-12 zirkombs 4.92 10-12 zirkombs Use these data to calculate the probable charge of the electron in zirkombs.

Looking at fossils, what type of environment most likely existed in this area long ago

What are the empirical formula and empirical formula mass for C10H30O10? Empirical formula: Empirical formula mass: es g/mol

Are energy levels and orbitals the same thing?

Heating devices can be made by passing an electric current through a conductor of: high resistance low resistance high conductivity low conductivity

What is the element 3O2 name

Why sulphur used for food preservation?

How would a solution that is labeled 5.0 molar be similar to one labeled 5.0 molal?