Atomic Structure and Periodic Table (P1) Flashcards
(5 cards)
1
Q
What is John Dalton conclude?
A
He described atoms as solid spheres, and that different spheres are made of different elements.
2
Q
What is JJ Thompson conclude?
A
That an atom is a sphere positive charge with electrons embedded in it.
3
Q
Why does reactivity increase as you go down the group in Alkali Metals?
A
The outer electron is removed more easily as it is further from the nucleus.
4
Q
Why does reactivity increase as you go up the group in Halogens?
A
An electron is accepted easier as the outer shell is closer to the nucleus.
5
Q
Why are metals good conductors?
A
They form metallic lattices in a sea of delocalised electrons.
