ASSESSMENT Trends in the Periodic Table

Front

Atomic radius generally increases as we move __________.

Back

down a group and from right to left across a period.

Front

Which has the greater electronegativity values (EN): Na or Al?

Back

Na

Front

Which of the following will have a lower ionization energy than Scandium (Sc)? Helium (He), Titanium (Ti), Calcium (Ca), Magnesium (Mg)

Back

Calcium (Ca)

Front

The element with the smallest ionization energy in Period 6 is -

Back

Cs

Front

As you move across the periodic table atoms tend to get smaller because, ______________.

Back

the atoms have more protons increasing the pull of electrons towards the center.

Front

Define electronegativity.

Back

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

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.

Front

Explain the trend of ionization energy across a period.

Back

Ionization energy generally increases across a period due to increasing nuclear charge.

Front

What is the trend of atomic radius down a group?

Back

Atomic radius increases down a group due to the addition of electron shells.

Front

What is the relationship between atomic size and metallic character?

Back

As atomic size increases, metallic character increases.