Questão | Responda |
what are the group 1 elements? | lithium, sodium, potassium, rubidium, caesium, francium |
what are the group 2 elements? | beryllium, magnesium, calcium, strontium, barium, radium |
what are group 7 elements? | fluorine, chlorine, bromine, iodine, astatine |
what are group 0 elements? | helium, neon, argon, krypton, xenon, radon |
what are group 1 elements called? | alkali metals |
what are the group 7 elements called? | halogen gasses |
what are group 0 elements called? | noble gasses |
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