C1+2 Questions I Got Wrong Flashcards
1
Q
What did John Chadwick do?
A
His research on atoms led to a better understanding of isotopes, he discovered neutrons, he discovers that isotopes of the same element, and he discovered that they have a different number of neutrons.
2
Q
Why was Mendeleev’s periodic table widely accepted?
A
Because he left gaps for yet to be discovered elements and switched the order of elements to keep groups consistent
3
Q
What would show the reaction of lithium and water makes hydrogen?
A
A pop/explosion
4
Q
Why do all group 1 metals react with water?
A
All have 1 electron in their outer shell
5
Q
Why does the reactivity of group 1 elements increase?
A
The atoms get bigger, electrons get further away from the nucleus and that makes the outer electron be easily lost
