Periodic Trends

As you move across the periodic table, from left to right, the metallic character of the elements: increases, decreases, stays the same.

Which of the following has a larger radius than Zinc? Options: Gallium, Magnesium, Strontium, Aluminum

Which has a lower ionization energy: Lithium or Potassium?

Which atom has the most valence electrons? Options: Ca, C, Cl, Si

As you move across the periodic table, from left to right, ionization energy is _________________.

As you move across a period, do the atoms get smaller or larger?

How many valence electrons does a neutral atom of nitrogen have?

Which atom is more electronegative? Options: K, Rb, Cl, B

As atoms in Group 15 are considered in order from top to bottom, the electronegativity of each successive element...

Why do atoms tend to get bigger as you move down the periodic table?