Top 10:
Comparing Types of
Elements
Note: I project these Summarizing Facts, and students write them
down.
I then allow use of Graphic Organizers and Top 10’s on my
assessments.
reading
Why?
Because I want students reading and re-
factually-dense
material
as
many
times
as
possible
before their no-notes Standardized Tests!
151
151
1
Metals have relatively high density and tend to be solids; most Nonmetals have very low
density and tend to be gases.
2
Metals tend to be shiny (have high luster); Nonmetals tend to be dull (have low luster).
3
Metals tend to be soft, strong and flexible; Nonmetals tend to be hard, brittle & rigid.
4
Most metals have High Melting Points; most Nonmetals have low Melting Points.
5
Most metals have High Boiling Points; most Nonmetals have low Boiling Points.
6
Metals have small or low Specific Heats: metals heat up & cool down quickly and have large
temperature changes.
7
Nonmetals have Big or High Specific Heats: Nonmetals heat up & cool down slowly and have
small temperature changes.
8
Metals are good thermal & electrical conductors; most Nonmetals are bad conductors.
9
Metals tend to give their valence electrons to Nonmetals in chemical reactions. Nonmetals
tend to take electrons from Metals, and share electrons with other Nonmetals.
10
Metalloids tend to be physically like metals and chemically like Nonmetals. Metalloids such as
Silicon (Si) and Germanium (Ge) are SEMI-conductors .