Chemistry, 12.06.2020 20:57 10242000cw
This column of the periodic table represents the halogen family. This is a family of reactive elements. Compare and contrast how the elements are similar and different. A)The mass numbers differ; they have the same number of protons and valence electrons. B)They have different atomic numbers and mass numbers; they have the same number of electrons. C)They have different atomic numbers and mass numbers; they have the same number of valence electrons. D)They have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.
Answers: 2
Chemistry, 21.06.2019 23:20
Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night. when he took it out, its new volume was 322 milliliters, but its pressure was the same. if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is kelvins.
Answers: 2
This column of the periodic table represents the halogen family. This is a family of reactive elemen...
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