The elements in group 1A of the periodic table are called: w) halogens x) alkaline earths y) alkali metals z) rare earths Answer : ANSWER: Y -- ALKALI METALS...
Which of the following groups of elements have an OUTER ELECTRONIC configuration of S-2-P-2? w) halogens x) Nitrogen-Phosphorus Group y) Carbon-Silicon Group z) Boron-Aluminum Group Answer : ANSWER: Y -- CARBON-SILICON GROUP...
A characteristic of the noble gases is that they all: w) have eight electrons in the outer shell x) have low stability y) form many compounds z) have filled outer electron shells Answer : ANSWER: Z -- HAVE FILLED OUTER ELECTRON SHELLS...
Which one of the following statements concerning elements in the Periodic Table is correct? A Elements of the same group all have the same number of electrons in the outermost occupied electron shell. B ... (Group 17) are all gases at room temperature. E The Group 13 elements are all metals. Answer : A Elements of the same group all have the same number of electrons in the outermost occupied electron shell....
The noble gases have low boiling points because: w) their ionization potentials are very low x) only weak Van der Waals forces hold the atoms together y) they are produced by the fractional distillation of liquid air z) they have eight electrons in the outer shell Answer : ANSWER: X -- ONLY WEAK VAN DER WAALS FORCES HOLD THE ATOMS TOGETHER...
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