ODL : Electronic Configuration

1. In terms of magnetic properties due to electrons, neon (A=10) may be described as ______.

• diamagnetic

• electromagnetic

• ferromagnetic

• paramagnetic

2. How many valence electrons are found in an atom with an electron configuration 1s² 2s² 2p ⁶3s ² 3p ⁵?

• 3

• 5

• 7

• 17

3. It is characterized by non-attraction, or even a slight repulsion, of an element to a magnet

• Diamagnetism

• Paramagnetism

• Tetramagnetism

• Pentamagnetism

4. Which of the following is paramagnetic?

• As

• Kr

• Rn

• Ne

5. Which of the following atom is paramagnetic?

• Zinc

• Krypton

• Neon

• Radon

6. Which element has four electrons in its p orbital?

• Be

• C

• Ne

• O

7. Which is considered as diamagnetic?

• Kr

• As

• Na

• K

8. How many electrons does silicon contains?

• 14

• 28

• 2

• 4

9. How many valence electrons does silicon contain?

• 14

• 28

• 2

• 4

10. What atom matches this electron configuration?

1s² 2s² 2p⁶ 3s²

• Neon

• Aluminum

• Potassium

• Magnesium