| A | B |
|---|
| metals | react to form positive ions |
| non-metals | react to form negative ions |
| noble gases | don't react so don't form ions |
| ionic bond | + ions and - ions attract and bond |
| covalent bond | non-metals share electrons |
| silver | a grey shiny solid metal |
| lithium | a soft white solid metal |
| mercury | only liquid metal at room temperature |
| acids | have formulae that start with H |
| oxides | have formulae with just O at end |
| hydroxides | OH at the end of formulae |
| hydrogen | makes pop noise when lit |
| metal + water reaction | makes hydrogen + metal hydroxide |
| oxygen | reignites a glowing ember |
| metal + acid reaction | makes hydrogen + metal salt |
| salt | a metal and non-metal bonded together |
| graphite carbon | a black brittle solid non-metal |
| sulphur | a smelly yellow solid non-metal |
| air | where we get oxygen for reactions |
| metal + oxygen reaction | produces hydrogen + metal oxide |
| how reactive a metal is | how much it fizzes, flashes, bubbles |
| reactivity series | putting metals in order of how reactive they are |
