Chem 8.10 Periodic Trends Flashcards
1
Q
What does the period number represent?
A
The number of shells in that atom.
2
Q
What does the group number represent?
A
The number of electrons in the last shell.
3
Q
Where are metals and non-metals in the periodic table?
A
Metals – Left (of the stepped line)
Non-metals – Right (of the stepped line)
4
Q
What is the periodic trend for melting points?
A
Usually, the first 4 elements have high melting points, while the remaining are very low.
5
Q
What happens to the physical properties of elements as you go across a period?
A
As you go across a period, the elements change from metallic to non-metallic.
