EOY 2 Flashcards
In the Periodic table how can we tell if an element is a metal or a non-metal?
Metals are on the left of the stepped lines and non-metals are on the right.
Name three typical properties of a metal
Any of these: good conductor or electricity and heat shiny has a high density malleable, ductile, sonorous
Name three typical properties of a non-metal
Any of these: poor conductor or electricity and heat dull has a low density brittle, non-sonorous
What is the definition of ductile and malleable?
ductile-Can be pulled into wires
malleable-Can hammer into different shapes
Finish the sentences
most metals have _ melting points, many non-metals have _ boiling points.
high
low
state the definition of a metalloid
An element that has properties between those of metals and non-metals.
Where are metalloids on the Periodic table?
Near/next to the stepped line
Metals and non-metals have _ chemical properties
different
metal:
magnesium + oxygen -> ?
magnesium oxide
non-metal:
sulfur + oxygen -> ?
sulfur dioxide
Many non-metal oxides are gases at _ degrees celsius
20
Finish the sentence:
In the periodic table, the vertical columns are called _. The horizontal rows are called _
groups, periods.
Where is Group 1 on the Periodic tabel?
far left
Why are Group 1 elements different to other metals?
They have lower melting points
State the definition of a physical property and a chemical property
Physical properties-describe things you can observe and measure
Chemical properties describe how substances take part in chemical reactions.
Name some characteristics of the Group 1 elements
have low melting and boiling points, they have low desnities and they are reactive
Group 1 elements react vigorously with water. Does the reactions get more vigorous from top to bottom or bottom to top?
Top to bottom
What is a displacement reaction?
When a more reactive element displaces a less reactive elements.
Name as many characteristics that Group 7 element might have.
Melting points and boiling points increase when going down the the Group. The colours of the elements get darker and more reactive.
Where is Group 7 on the Periodic table?
Second from the right.
Where is Group 0 on the Periodic table?
Furthest right.
What are the Group 0 elements called?
the noble gases
Name as many characteristics that Group 0 element might have.
They have low melting points and boiling points. They are colourless gases at room temp and are unreactive.
