C4 - Chemical Patterns

What is relative atom mass?

Why is it called the periodic table?

What two features are there common to Group 1 elements?

In what four ways are the Group 1 metals unusual?

What happens when the first three elements react with water? (3 stages/ideas)

What happens when the first three elements react with chlorine?

What three trends are there for the first Group 1 metals?

What are the Group 7 elements called and are they metals, non-metals or gases.

In what two distinct ways do the halogens always occur in nature?

Do the melting and boiling points of Group 7 elements increase or decrease going down the column?

What are displacement reactions? Give an example of this with chlorine and sodium.

What are flame colours?

What is a line spectrum?

What is 'the use of instruments to use and analyse spectra' called?

Describe the structure and parts of an atom.

What is the 'proton number' and what does this also show?

What two words together mean 'the number and arrangement of electrons in an atom of an element'.

How does electron arrangement relate to the groups system?

What electron arrangement usually leads to non-metals and to metal elements?

What is a salt?

What is the word equation for producing common/table salt?

If something is 'crystalline' what does this mean?

When two elements become a salt compound, what effect does this have on their melting and boiling temperatures and why?

In what form does a salt conduct electricity and what happens to it?

What is splitting compounds up using electricity called?

What is an ion?

How do atoms become ions?

Are metals/non-metals positive/negative?

What two words together mean 'the different forms a chemical can take'?

What three species does chlorine have and what two species does sodium have?

CFCs break up the ozone. Why does this happen?

What label is given to the Cl molecule and why?

What are the properties of chlorine dioxide? (4 points)

What effect does dissolving sodium chloride in pure water have on the pH?