Elements Flashcards
1
Q
Where can you find the most reactive elements in the periodic table?
A
To the left
2
Q
What happens to the elements as you go down the periodic table?
A
They become much more vigerous
3
Q
Elements on the modern periodic table are put in order of their?
A
Atomic number
4
Q
Elements on the early periodic table are arranged in order of their?
A
Atomic mass
5
Q
Why were the older versions of the periodic table incomplete?
A
Many elements had not yet been found
6
Q
Who invented the periodic table?
A
Mendeleev
7
Q
Elements also have hazard symbols. What are some hazard symbols used to describe elements?
A
Flammable, irritant, toxic, oxidizing and corrosive
8
Q
What is the symbol for sodium?
A
Na
9
Q
What is the symbol for magnesium?
A
Mg
