Chapter 16 Properties of Atoms and the Periodic Table

Front

What is the maximum number of electrons that each energy level of an atom can hold?

Back

Each energy level of an atom can hold a maximum number of electrons, which is determined by the formula 2n², where n is the energy level number.

Front

What particle has a mass about equal to that of a proton?

Back

A neutron has a mass about equal to that of a proton.

Front

Which subatomic particle has a much smaller mass than a neutron or proton?

Back

An electron has a much smaller mass than a neutron or proton.

Front

What do dot diagrams represent in atomic structure?

Back

Dot diagrams are used to represent the outer electrons of an atom.

Front

What happens to metallic properties as you move from left to right in a row of the periodic table?

Back

Metallic properties decrease as you move from left to right in a row of the periodic table.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the difference between an atom and an element?

Back

An atom is the smallest unit of matter that retains the properties of an element, while an element is a pure substance made of only one type of atom.

Front

What are isotopes?

Back

Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

What is the role of valence electrons in chemical bonding?

Back

Valence electrons are the outermost electrons of an atom and are involved in forming chemical bonds with other atoms.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number, which shows periodic trends in properties.