1.
A compound is two or more different...: elements that are chemically combined. They can be broken down into simpler substances.
2.
An element is a substance made of...: only one kind of atom. Elements can not be broken down into simpler substances or even be broken down into new substances.
3.
Elements in the same group have similar...: physical and chemical properties.
4.
Elements that are malleable, ductile, good conductors of heat and electricity and have a luster are...: metals.
5.
Elements that are soft, brittle, lack a luster, and are poor conductors of heat and electricity are...: nonmetals.
6.
Elements that have properties of both metals and nonmetals are...: metalloids.
7.
Elements with an atomic number of greater than eighty-three are...: radioactive because their nuclei are unstable.
8.
Four examples of common compounds are...: carbon dioxide, water, glucose, table salt
9.
Group eighteen elements are: called the noble gases. These elements exist alone. Since they have enough electrons, they don't have the need to form compounds with other elements.
10.
Group one elements are attracted to elements in group: seventeen (17). For example the group one element sodium (Na) forms a compound with the group seventeen element chlorine (Cl). The compound is sodium chloride which is common table salt.
11.
Group one elements are...: also known as the alkali metals. These elements are highly reactive and some are explosive, so in nature they are not found alone but joined with another element in the form of a compound.
12.
Group one has the most reactive...: metals. They are the most reactive metals because they easily lose electrons.
13.
Group one is more...: reactive than group two.
14.
Group seventeen are: the halogens. These elements are the most active nonmetals, so in nature, they are not discovered alone but joined with another element in the form of a compound.
15.
Group seventeen has the most reactive...: nonmetals. They are the most reactive nonmetals because they easily gain electrons.
16.
Group two elements are known as the...: alkaline earth metals.
17.
Groups are also known as...: families
18.
Groups are the...: vertical columns of the periodic table.
19.
Groups three through twelve are...: the transition metals. They are all metals. These elements form compounds that have intense colors. Some of them are used to make fireworks.
20.
How many groups are there on the periodic table?: Eighteen (18)
21.
How many periods are there on the periodic table?: Seven (7)
22.
Hydrogen, carbon, and chlorine are what types of elements?: nonmetals.
23.
Metalloids are found...: above and below the bolded zigzag line.
24.
Most of the periodic table is made of...: metals.
25.
Periods are the...: horizontal rows of the periodic table.
26.
Silicon, germanium, and arsenic are what types of elements?: metalloids
27.
Sodium, magnesium, and lead are what types of elements?: Metals
28.
The chemical symbols are...: single, double, or triple letter combinations in which the first letter is capitalized.
29.
The periodic table is organized by...: atomic number.
30.
The three types of elements on the periodic table are...: metals, nonmetals, and metalloids
31.
The word "periodic" means...: repeating according to a pattern.
32.
Types of elements seen on the table from left to right are: metals then metalloids then nonmetals.
33.
You'll need the periodic table for this question. An element in group 14 of period 5 is...: S n which is tin!
34.
You'll need the periodic table for this question. An element in the 13th group of the 3rd period is...: A l which is aluminum!
35.
You'll need the periodic table for this question. An element with an atomic mass of 16 is...: oxygen!
36.
You'll need the periodic table for this question. An element with an atomic mass of 39 is...: K which is potassium!
37.
You'll need the periodic table for this question. The only alkaline earth metal in period 4 is...: C a which is calcium!
38.
You'll need the periodic table for this question. The only metalloid in period 3 is...: S i which is silicon! Silicon is used to make computer chips.
39.
You'll need the periodic table for this question. The only noble gas in period 2 is...: Ne which is neon!