C2 - Periodic Table Flashcards
1
Q
What was the periodic table originally ordered by?
A
Atomic weight
2
Q
What is the periodic table ordered now?
A
Atomic number
3
Q
What is an isotope?
A
An atom of an element with the same number of protons and electrons but a different number of neutrons
4
Q
What type of ion do metals form?
A
Cations
5
Q
What type of ions do non-metals form?
A
Anions
6
Q
What are the products of an alkali metal and water?
A
Metal hydroxide and hydrogen
7
Q
Describe the reactivity and melting point trends of Group 1.
A
As you go down Group 1, reactivity increases and melting point decreases.
8
Q
A
