Atomic Structure and the Periodic Table Review

What will the atomic mass be for the atom described below?

• 30

• 31

• 46

• 15

Which of the following are true about elements?

• only I

• I and II

• I, II, and IV

• I, III, and IV

Which element am I?

I am in period 3, and I have five valence electrons.

• arsenic

• boron

• phosphorus

• vanadium

In the periodic table, the most reactive metals are found

• in group 1 (alkali metals family).

• in period 1.

• in groups 13 through 16.

• in periods 6 and 7.

In the Periodic Table of Elements, most elements are in what category or type?

• halogens

• metalloids

• metals

• nonmetals

How many total electrons are in a neutral atom of lithium?

• 3

• 4

• 6.9

• 1

Each family/group in the periodic table has its own characteristic properties based on the number of

• neutrons.

• valence electrons.

• protons.

• ions.

Which of the following elements is a metal?

• boron

• carbon

• magnesium

• nitrogen

Which group of elements shares characteristics with both metals and nonmetals?

• metalloids

• metals

• nonmetals

• salts

Locate group 18, period 4. Predict the state of matter and the chemical reactivity of the element that belongs in that box.

• noble gas; does not react with other elements

• solid nonmetal; very reactive

• solid transition metal; somewhat reactive

• liquid transition metal; somewhat reactive