Magnemite evolves into Magneton and learns following moves in following levels:
Generation 1:
Level 38: Thunder Wave
Level 46: Swift
Level 54: Screech
Generation 2:
Level 35: Swift (Gold and Silver)
Level 35: Swift (Crystal)
Level 43: Screech
Level 53: Zap Cannon
Generation 3:
Level 35: Lock On
Level 44: Tri Attack
Level 53: Screech
Level 62: Zap Cannon
Generation 4:
Level 30: Magnet Bomb
Level 34: Screech
Level 40: Discharge
Level 46: Mirror Shot
Level 50: Magnet Rise
Level 54: Gyro Ball
Level 60: Zap Cannon
Generation 5:
Level 30: Lock On
Level 34: Magnet Bomb
Level 40: Screech
Level 46: Discharge
Level 50: Mirror Shot
Level 54: Magnet Rise
Level 60: Gyro Ball
Level 66: Zap Cannon
Hope I answered your questions as you wanted it to be answered.
Magneton can only learn Tri Attack through the Move Relearner in Pastoria City in Pokémon Diamond, Pearl and Platinum.
yes it can it is an eletric type
i think it cannot cause magnimite cannot.
it can learn Grass and Psychic moves
There is no best level to evolve Magneton into Magnezone as long as it knows Tri Attack before you evolve it if you want it to know Tri Attack because Magnezone cannot learn Tri Attack in any way because other than Magneton learning Tri Attack via the Move Re-learner, their move pools are exactly the same except for a Move Tutor being able to teach Magnezone the Iron Head attack which is a move that Magneton cannot learn.
he can learn zap cannon
It can't learn by itself. Give it the tm.
ground types are
Magneton can only learn Tri Attack through the Move Relearner in Pastoria City in Pokémon Diamond, Pearl and Platinum.
i think magneton learns zap cannon at level 53 or 57
Magneton learns it at lv. 62.
yes it can it is an eletric type
i think it cannot cause magnimite cannot.
dodrio (evolution of doduo) and magneton (evo of magnemite)
it can learn Grass and Psychic moves
There is no best level to evolve Magneton into Magnezone as long as it knows Tri Attack before you evolve it if you want it to know Tri Attack because Magnezone cannot learn Tri Attack in any way because other than Magneton learning Tri Attack via the Move Re-learner, their move pools are exactly the same except for a Move Tutor being able to teach Magnezone the Iron Head attack which is a move that Magneton cannot learn.
Of course it can learn dragon moves such as dragonbreath and dragon dance and also can learn moves like twister and waterfall.