periodic table Flashcards
groups on the periodic table are in which direction
vertical
periods on the periodic table are in which direction
horizontal
the periodic table is made up of what ?
chemical elements
what is an atomic number ?
the number of protons in the nucleus of an atom
List three properties of a metal?
Good conductor of electricity, good conductor of
heat, shiny, high density, malleable, ductile,
List three properties of a non-metal?
Poor conductor of electricity, poor conductor of
heat, dull, low density, brittle
What is the name of an element on the border
between metals and non-metals?
Metalloids
What is made when a metal reacts with oxygen?
A metal oxide
Where are metals on the periodic table?
On the right
Where are non metals on the periodic table?
On the left
What is a physical property?
Things you can observe and measure
What are chemical properties?
describe how substances react
