Chemical Elements 19–24

Questions

1. Read a table What is the symbol for calcium?

   Sc V K Ca
2. Read a table Which element has the symbol V?

   Vanadium Chromium Scandium Potassium
3. Read a table What is the atomic number of calcium?

   22 21 24 20
4. Vocabulary What is an atomic number?

   the year an element was found how many letters are in its symbol the number of protons in each atom of an element how heavy a gram of the element is
5. Text features What does each row of the table show?

   one fact for every item the source of the facts the title of the table the facts for one element

See all your scores