If an atom has an atomic mass of 19 and a atomic number of 9 whats its protons neutrons and electrons

What charge does a shock on the doorknob have?

What are two sources of surface water on the planet earth

A recipe calls for one half cup of ingredient a for every 1 and one third cups of ingredient b. you use 4 cups of ingredient a. how many cups of ingredient b do you need?

How could you separate mixtures

Find Out The hazards of corrosion and rancidity

What subatomic particles do the following symbols represent in the atomic diagrams

2. You have 2 m3 of a mineral ore sample. It has a mass of 1 * 104 kg. Calculate the density of the ore sample and express your results in g/cm3 with appropriate scientific notation.

A sample of hydrogen was collected by water displacement at 23.0°C and an atmospheric pressure of 735 mmHg. Its volume is 568 mL.

What is loamy soil?

What is the lowest possible value of n for a d atomic orbital?