Unit 3-Periodic Trends Post-Flashcardizz

Front

What happens to electron affinity as one moves top to bottom on the periodic table?

Back

Electron affinity decreases.

Front

What happens to ionization energy as one moves top to bottom on the periodic table?

Back

Ionization energy decreases.

Front

What is the group number for the noble gases?

Back

18

Front

What groups are involved in the transition metals?

Back

3-12.

Front

How many protons are in the element with atomic number 17?

Back

17 protons.

Front

Define electron affinity.

Back

Electron affinity is the amount of energy released when an electron is added to a neutral atom.

Front

Define ionization energy.

Back

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

Front

What trend is observed in atomic radius as you move down a group in the periodic table?

Back

Atomic radius increases.

Front

What trend is observed in electronegativity as you move across a period from left to right?

Back

Electronegativity increases.

Front

What is the significance of group number in the periodic table?

Back

Group number indicates the number of valence electrons in the elements of that group.