Group 8A elements are all gases at room temperature except for ________.
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Q145: The molecular shape of the PF3 molecule
Q146: Which group 7A halogen is radioactive?
Q147: D2O,deuterium oxide,is also known as _.
Q148: In a hypohalous acid,the oxidation state of
Q149: What is the oxidation state of oxygen
Q151: The acid and salts of which halogen-oxyanion
Q152: In a proton transfer reaction the weaker
Q153: What noble gas is radioactive?
Q154: Which of the following is the nitride
Q155: Of the nonradioactive halogens,which is the largest?
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