Download Due: Class: Name: National 4 Chemistry “The Periodic Table

Class:
Name:
Due:
National 4 Chemistry
“The Periodic Table” homework
1. Elements are listed in the Periodic Table.
(a)
(b)
Each element has a name and a chemical symbol.
Write the chemical symbol for the element magnesium.
(You may wish to use p1 of the data book to help you.)
(1)
Each element has an atomic number.
Name the element which has an atomic number of 6.
(You may wish to use p1 of the data book to help you.)
(1)
2. The Periodic Table shows the names of the elements.
A
D
chlorine
lithium
B
E
copper
sulphur
C
F
oxygen
bromine
(a)
Identify the two elements in the same group as fluorine.
You may wish to use the data book.
(1)
(b)
Identify the two elements which were discovered in 1774.
You may wish to use p8 of the data book.
(1)
(c)
Identify the metal with the highest density.
You may wish to use p2 of the data book.
(1)
3. Mercury is an element in the Periodic Table.
It has an atomic number of 80.
(a) Write the symbol for mercury.
(You may wish to use p8 of the data book to help you.)
(1)
(b) Elements can be classified as metals or non-metals.
Is mercury a metal or a non-metal element?
(You may wish to use p8 of the data book to help you.)
(1)
4. As well as carbohydrates, a bar of chocolate contains minerals, protein and fat.
The table shows the elements present in the minerals in a bar of chocolate.
The percentages of each element in the minerals is also shown.
(a) Name the non-metal found in the minerals in the bar of chocolate.
(1)
(b) Use the information in the table to:
• label and scale on the vertical axis;
• draw a bar graph of the results.
(2)
Score:
/10