Berenguer Chemistry Chapter 5-the periodic table

A positive ion is known as a

The alkali metals are _____ reactive than the alkali earth metals

The s and p electrons in the outer energy level which can be lost, gained or shared are called

How many electrons does phosphorous have in its outermost energy level?

Which of these has trends that are opposite the others?

Moseley realized that the periodic properties of elements occur at regular intervals of their

Mendeleev noticed that the properties of elements repeat at regular intervals when arranged by

Hydrogen is placed separately from the other elements (on some periodic tables ) because

Mg and Ca belong to the

Physical and chemical properties of the elements are periodic functions of their atomic number

One-half distance between the nuclei of 2 identical atoms bonded together is the

Which of these represents a neutral atom acquiring an electron releasing energy

If an elements electron configurations ends in s²d⁵ it would be in the ____ block

what group , period and block is Sulfur (S) in

The most reactive group of nonmetals is the

Ionization energy is the energy needed to remove a(n)

What are the elements 57-71 called?

The right side of the p-block is composed mainly of

The element with the greatest electronegativity is

Elements in the same group of the periodic table can be expected to have similar