Periodic Classification of Elements | Activities in Text Book with Solution
Activity 5.9
Examine elements of the third period and classify them as metals and non-metals.✅ Answer:
|
Elements with Atomic No. |
Configuration |
Metal
/ Non-metal |
|
Na (11) |
2, 8, 1 |
Metal |
|
Mg (12) |
2, 8, 2 |
Metal |
|
Al (13) |
2, 8, 3 |
Metal |
|
Si (14) |
2, 8, 4 |
Metalloid |
|
P (15) |
2, 8, 5 |
Non-Metal |
|
S (16) |
2, 8, 6 |
Non-Metal |
|
Cl (17) |
2, 8, 7 |
Non-Metal |
|
Ar (18) |
2, 8, 8 |
Non-Metal |
On which side of the Periodic Table do you find the metals?
✅ Answer: Left side.
On which side of the Periodic Table do you find the non-metals?
✅ Answer: Right side.