Ch. 3 - Structure of the Atom Honors

The atomic number of oxygen is 8, this indicates that there are 8

This ion is positive due to losing electrons. It is a metal.

An atom is electrically neutral because

All atoms of the same element have the same

This person did not agree with Democritus

Calculate the number of atoms in 10.0g of sulfur.

This scientist created the atomic theory

Chlorine has an atomic number of 17 and a mass number of 35. It has

What would be the charge on Potassium if it has 19 protons and 18 electrons?

Molar mass

This person came up with the term atom first

The nucleus of an atom has all of the following characteristics EXCEPT

What is the Molar Mass of Nitric Acid, HNO₃?

If a compound is composed of same 2 elements, the ratio of masses is always fixed whole number.

The mass number of an element listed on the periodic table is the

An aluminum isotope consists of 13 protons, 13 electrons and 14 neutrons. Its mass number is

Determine the mass in grams of 5.00 moles of oxygen.

How many atoms are present in 8.00moles of chlorine?

Isotopes are atoms of the same element that have different

An isotope of carbon has a mass # of 14 and an atomic # of 6. What is its hyphen notation?

The smallest unit of an element that retains the chemical properties of that element

According to the law of definite proportions, any 2 samples of HCl always have

The total number of protons and neutrons in the nucleus of an atom is its