The diagram below shows the different phase transitions that occur in matter. Solid
Liquid
16
Gas
Which arrow would most likely represent the phase change that involves the same amount of energy as arrow 1?
O2
O 3
O4
O 5
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since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.