PERIODIC TABLE- layout Flashcards
1
Q
how are they arranged
A
by their atomic number (small/ proton number)
2
Q
non- metals
A
unable to conduct electricity (most= carbon)
brittle
have acidic oxides
INSERT DIAGRAM
(on the right of the line
going diagonally down from B to At)
3
Q
metals
A
conduct electricity
malleable/ ductile
have alkaline oxides
INSERT DIAGRAM
(on the whole left hand side)
4
Q
alkali metals
A
group 1
5
Q
alkali earth metals
A
group 2
6
Q
halogens
A
group 7
7
Q
noble gases
A
group 0/8
8
Q
transition metals
A
INSERT DIAGRAM
middle section
9
Q
metalloids
semimetals
A
INSERT DIAGRAM (going down diagonally from B to AT)
10
Q
created by…
A
Mendeleev
he grouped his elements based on how hey reacted and left gaps for unfound elements
11
Q
chemical reactivity
A
elements react because they wanna become STABLE
they do this by LOSING, GAINING, SHARING electrons
