Introductory Chemistry Study Set 7

According to chemical nomenclature, SO₂ is referred to as sulfur dioxide.

I⁻ is an example of a monatomic anion.

Atoms of the same element with different numbers of electrons are called isotopes.

'Au' is the atomic symbol of the element silver.

The proton is a heavier subatomic particle than the electron and has a positive charge.

The molecule Se₂Br₂ is called diselenide dibromide.

Monatomic ions are formed when an atom loses or gains one or more electrons to attain a charge.

The connection between two atoms in a molecule is called a chemical bond.

According to the nomenclature of ionic compounds, MgCl₂ is called magnesium dichloride.

Hydrogen and oxygen exist naturally as three-atom molecules.

N³⁻ is called trinitride ion.

The atomic mass unit is defined as one-twelfth of the mass of a nitrogen-14 atom.

The molecular mass of dinitrogen trioxide is determined by adding the atomic mass of nitrogen two times with the atomic mass of oxygen three times.

Species with overall negative charges are termed anions.

Uranium-235 isotope of uranium has 143 neutrons.

In the ionic compound NaCl, sodium ion is the cation and chloride ion is the anion.

A proper covalent formula has a cation and an anion in it.

The atomic mass of an element is a weighted average of the masses of the isobars of an atom.

The number of protons and electrons in an element's nucleus is called the atomic number of the element.

The smallest piece of an element that maintains the identity of that element is called a molecule.