Chemistry S1 Exam review set 3

Front

What do we call the attraction between opposite electrical charges?

Back

Electrostatic force is the attraction between opposite electrical charges.

Front

Atomic radius is defined as the distance from the center of the atom’s nucleus to __________.

Back

The atomic radius is defined as the distance from the center of the atom’s nucleus to its outermost electron.

Front

What is the large group of elements that have their highest energy electrons in interior d sublevels?

Back

Transition metals are the large group of elements with their highest energy electrons in interior d sublevels.

Front

Lithium, sodium, potassium, rubidium, cesium, and francium are all examples of __________.

Back

These elements are all examples of alkali metals.

Front

Which would have a smaller radius? Ca or Ca2+?

Back

Ca2+ has a smaller radius than Ca.

Front

What is the definition of an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What are the main characteristics of metals?

Back

Metals are typically shiny, good conductors of heat and electricity, malleable, and ductile.

Front

What is the periodic trend for atomic radius across a period?

Back

Atomic radius decreases across a period from left to right due to increased nuclear charge.

Front

What is the periodic trend for ionization energy down a group?

Back

Ionization energy generally decreases down a group due to increased distance from the nucleus and electron shielding.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.