Differentiate between an atom, an element, and a molecule.

The mass of a single nickel atom is 9.75×10-23 grams. How many nickel atoms would there be in 182 milligrams of nickel? atoms

A copper atom has a mass of 1.06 × 10^-22 g and a penny has a mass of 2.5 g. Use this information to answer the question below. Must have the correct number of significant digits. How many moles of copper atoms have a mass equal to the mass of a penny?

Which of the following elements is diatomic? Magnesium, Hydrogen, Calcium, Bromine, Iodine, Fluorine, Nitrogen.

Classify the statements pertaining to elements and compounds as either true or false. True False Compounds must contain at least [wo elements. Compounds are pure substances whereas elements are mixtures Compounds cannot be broken down further by processes such as filtration. Compounds may be broken down into simpfer substances through: chemical processes. A compound is a physical mixture of simpler substances.

The mass of a neutron is 1.6749×10−24 gg , and the mass of a proton is 1.6726×10−24 gg . What is the total mass of a neutron and a proton?

Atoms are the building blocks of all matter. Where do the many diverse and unique properties of matter come from?