Chemistry, 30.06.2019 00:00 jannadwhite2435
Asection of the periodic table is shown below: a portion of two rows of the periodic table is shown. the first row reads two helium 4.003. the second row reads seven nitrogen 14.007, eight oxygen 15.999, nine flourine 18.998, and 10 neon 20.180. helium and neon form the last column of the periodic table. which of the following statements is true? neon is more reactive than fluorine because neon needs only one electron to fill its outermost shell. neon is more reactive than oxygen because neon has to lose only one electron to fill its outermost shell. fluorine is more reactive than nitrogen because fluorine needs only one electron to fill its outermost shell. fluorine is more reactive than neon because fluorine has to lose only one electron to fill its outermost shell.
Answers: 1
Chemistry, 22.06.2019 08:30
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?
Answers: 1
Chemistry, 22.06.2019 12:30
Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17
Answers: 1
Asection of the periodic table is shown below: a portion of two rows of the periodic table is shown...
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