Answer:
Generally, the first ionisation energy increases along a period. But there are some exceptions one which is not an exception
Bacteria --> corn --> mouse --> hawk
Answer:
Pure Chemistry -- is NOT considered a branch of Chemistry.
Explanation:
Second question is number 4.
A polyatomic ion is a group of elements that has a charge that is not 0. for example the charge of P04 is -3
Answer:
Rhodium is used to make electrical contacts, as jewelry and in catalytic converters, but is most frequently used as an alloying agent in other materials, such as platinum and palladium. These alloys are used to make such things as furnace coils, electrodes for aircraft spark plugs and laboratory crucibles.
Explanation: