Periodic Trends Practice

Front

As you move down a group in the periodic table, atomic radius increases because ____.

Back

you add more and more shells (energy levels).

Front

The atom with the largest atomic radius in Group 18 is ___.

Back

Rn (Radon).

Front

Which element is likely to have the highest electronegativity in Group 17?

Back

F (Fluorine).

Front

Francium (Fr) has the lowest ionization energy in Group 1 because ____.

Back

its 1 valence electron is very far from the nucleus, so little energy is needed to remove it.

Front

Electronegativity __________ from left to right across a period and __________ from top to bottom down a group.

Back

increases, decreases.

Front

Define atomic radius.

Back

The distance from the nucleus of an atom to the outermost shell of electrons.

Front

What is ionization energy?

Back

The energy required to remove an electron from an atom in its gaseous state.

Front

Explain the trend of ionization energy in the periodic table.

Back

Ionization energy generally increases across a period and decreases down a group.

Front

What is electronegativity?

Back

A measure of the tendency of an atom to attract a bonding pair of electrons.

Front

Describe the trend of electronegativity in the periodic table.

Back

Electronegativity increases across a period and decreases down a group.