Periodic Table Trends

Which has the smallest atomic radius?

A horizontal row of blocks in the periodic table is called a(n)

Which element is a metalloid in period 3?

Na forms an ion with what charge?

Which list contains elements arranged in the order of increasing atomic radius?

Krypton has how many valence electrons?

A line spectrum (color) is produced when an electron moves from one energy level...

Which atom has the highest ionization energy?

The most reactive group of non-metals is the

If electrons in an atom have the lowest possible energies, the atom is in the

Nitrogen has __ valence electrons.

To which group do Fluorine and Chlorine belong?

A line spectrum (color) is produced when an electron moves from one energy level

When non-metals form ions, they tend to form...

Which of the following is a non-metal

The electrons on the outer most energy level are called

Which has the largest atomic radius?

Which element is a metal in period 4 of the periodic table?

Argon, Krypton, and Xenon are

Within a group of elements, the atomic radii of the atoms

For an electron to be changed from ground state to excited state,

Which has the largest atomic mass?