Chemistry Worksheet: Introduction To The Elements printable pdf download

Chemistry Worksheet: Introduction To The Elements

Name_________________________________ Period ______ Date___________

Activity 1.3: Introduction to the Elements

Model A: Example of Periodic Table Box

Elements are organized in the Periodic Table according to their properties. A box like

this one, which contains information about the element, represents each element.

Atomic

Element

Number

Symbol

Oxygen

Element

Atomic

15.9994

Name

Mass

1. Look at the periodic table. How many element symbols contain only one letter?

2. What case (upper or lower) is the first letter of every element symbol?

3. For the elements with more than one letter, what case (upper or lower) is the

second letter of every symbol?

4. A student was writing out formulas for elements and compounds. He wrote SN and

CO.

a. Are these elements or compounds?

b. How do you know?

5. Explain why writing a chemical symbol correctly is important?

6. Which number is larger, the atomic number or the atomic mass?

7. Which number must always be a whole number?

Model B: Symbols and Names for Elements

The names shown on the periodic table are the elements’ English Names.

Name

Symbol

Atomic Number

Atomic Mass

Beryllium

Iron

Neon

Gold

Chemistry Worksheet: Introduction To The Elements