1.

The candela is one of the seven base units in the SI system. It measures…?

2.

Yeast is an important source of 

3.

 What scientist discovered the radioactive element radium?

4.

 The law that “the properties of elements are periodic functions of their atomic numbers” was given by…?

5.

What scientist discovered the radioactive element radium?

6.

Which of the two metals are mixed in the manufacturing of stainless steel?

7.

 What products are, as a general rule, the result of an acid and a base reacting together?

8.

 What the main particles of an atom are?

9.

The horizontal rows in a periodic table are called…?

10.

Elements in the modern periodic table are arranged on the basis of their…?