122-123: Elements and Atoms (Higher) Flashcards
What are the simple substances containing only one type of atom called?
Elements.
What is a element?
A simple substance made up of one type of atom
Can you split up copper chloride?
Yes because it is made from 2 types of atom
What is the test for oxygen?
Put a glowing splint into the tube of gas and if the splint bursts into flame then it is a oxygen gas
What do we get when we heat up copper carbonate
Copper oxide + Carbon dioxide
What does the copper oxide turn into when we heat it up with hydrogen?
It turns into copper + water
Why does copper oxide turn into copper when heated with hydrogen?
In the reaction the hydrogen takes the oxygen out of the copper oxide to form water
What is a element made out of?
An element is made of tiny particles called atoms
How is an argon atom different from a helium atom?
Argon atoms are bigger and heavier than helium atoms
Are there more metals or non-metals amongst the elements?
Metals
Is Copper Chloride an element? why?
No, because it contains different types of atom
Is Copper an element? why?
Yes, because it only contains one type of atom (copper)
what are the three main ways of splitting up a substance?
- heating it
- dissolving it
- melting it
elements are made up of very small particles called_____
atoms
how do you test for oxygen?
place a glowing splint into a test tube and test if the flame reignites
