Final Review Part 3

Elements with properties of both metals and nonmetals are called

Carbon and other nonmetals are found in which area of the periodic table?

The order of elements in the periodic table is based on

In a balanced chemical reaction, the total mass of the products always equals the

Group 18 noble gases are inert because

What happens in a chemical reaction?

Isotopes are atoms of the same element that have the same number of __ but different numbers  

The vertical columns on the periodic table are also called 

The chemical formula for water, H₂O, means that each water molecule contains

Ionic bonds form between

Atoms have no electric charge because they

Most halogens form compounds by

According to Bohr’s model of the atom, electrons behave like

part of Dalton’s atomic theory:  atoms of the same element  are alike, and

Fluorine’s atomic number is 9. This means that a fluorine atom has

In the following equation K₂O is a _____ :  CaCl₂ + K₂O--> CaO + 2KCl

Atoms of elements that are in the same group have the tendency to have the same number of 

In which type of bond do atoms share electrons?

Each molecule of hydrochloric acid, HCl, contains one atom of hydrogen and

In an exothermic reaction,energy is transferred from

Each molecule of tablesugar, C₁₂H₂₂O₁₁, contains

Which statement about the alkali metals is correct?

In the following equation how many molecules of calcium oxide are formed CaCl₂+K₂O-->CaO+2KCl  

According to modern atomic theory, it is nearly impossible to determine an electron’s exact

The charge of an electron is