QuizPERIODIC TABLE AND MATERIALS SCIENCE

If an element has an atomic number of 81 and an atomic mass of 179, how many neutrons are in every atom of this element?

QUESTION 1

How many naturally-occurring elements exist on earth?

QUESTION 2

Sodium is in Column IA and Row 3 of the periodic table. How many valence shells are in each atom of sodium?

QUESTION 3

Helium, Neon, Argon, Krypton, Xenon, and Radon are all in Column 8A of the periodic table. They have full outer valence shells, so they are very un-reactive. What is the name for this group of elements?

QUESTION 4

Uranium has an atomic number of 92, and an atomic mass of 238.03 amu. How many electrons does each atom of uranium have?

QUESTION 5

Which of the following are qualitative observations?

smell masstemperature viscositytexture diameterpH length

QUESTION 6

Identify the name of the Russian chemist who designed the first periodic table of the elements.

QUESTION 7

Name the two elements contained in steel.

QUESTION 8

What was the first type of fiber created in a test tube?

QUESTION 9

The ability to resist stretching is ____________ strength.

QUESTION 10