Which of these describes atomic radii as one moves from top to bottom within a group? the atomic radius decreases from top to bottom within a group. the atomic radius does not vary in any predictable way within a group. the atomic radius is the same within a group.
correct answer
the atomic radius increases from top to bottom within a group?
They all have 2 elections in the outer S orbital, and 4 electrons in the P orbitals.
Answer:
option 1 pls mark bbrainliest
Balance Fe
Fe3O4 + H2→ 3Fe + H2O
Balance O
Fe3O4 + H2→ 3Fe + 4H2O
Balance H
Fe3O4 + 4H2→ 3Fe+4H2O
Coeff of H2O=4
<span>Air is a mix of several substances.</span>
