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20 February, 04:30

Use the periodic table to identify the name or atomic number for each element below. (Give the name, not the chemical symbol, for each element.) hafnium: atomic number : atomic number 15 : atomic number 45 osmium: atomic number magnesium: atomic number

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  1. 20 February, 04:47
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    Hafnium: Atomic number 72.

    Phosphorous: Atomic number 15.

    Rhodium: Atomic number 45.

    Osmium: Atomic number 76.

    Magnesium: Atomic number 12.
  2. 20 February, 05:17
    0
    hafnium atomic number 72

    phosphorus atomic number 15

    rhodium atomic number 45

    osmium atomic number 76

    magnesium atomic number 12
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