Periodic table and trends G 9

Which scientist first arranged elements by atomic number?

What element is in the 1 st alkali metal?

Elements that are poor conductors of electricity are most likely:

Consider the following electron arrangement: 2, 8, 7. Find the number of energy levels and valence electrons:

Find the number of neutrons and electrons in an atom that has an atomic number 3 and a mass number 7:

The modern periodic table is arranged in order of increasing ______

Elements of column 1 are

Which element is the most electronegative?

Who arranged the elements by atomic mass and predicted properties of missing elements?

The majority of elements are ______

When an atom loses an electron the radius generally gets _______

Select the electron configuration of an atom that has an atomic number 20, and a mass number 40

The ______ the ionization energy the _____ the electron affinity

When one or several electrons are taken up by an atom to form an ion, the ion is called

Elements of column 3 to 12 are:

It generally decreases when moving to the right of the period table and increases down a group. It is the:__________

As you move right to left on the periodic table, in general _______

Consider the following electron arrangement: 2, 6. This atom belongs to which column and which period?

Elements in the same group have _____

Which element has the smallest atomic radius?

Which periodic table trends follow the same pattern?