use the periodic table to answer the question.\nperiodic table of the elements\nwhich element has the same…

use the periodic table to answer the question.\nperiodic table of the elements\nwhich element has the same number of valence electrons as bromine (br)?\n(1 point)\n○ potassium (k)\n○ selenium (se)\n○ krypton (kr)

use the periodic table to answer the question.\nperiodic table of the elements\nwhich element has the same number of valence electrons as bromine (br)?\n(1 point)\n○ potassium (k)\n○ selenium (se)\n○ krypton (kr)

Answer

Brief Explanations:

To find the element with the same number of valence electrons as Bromine (Br), we first locate Bromine on the periodic table and determine its number of valence electrons. Bromine (Br) is in Group 17 (or VIIA). Elements in this group have 7 valence electrons. Next, we determine the number of valence electrons for each of the options:

  1. Potassium (K) is in Group 1 (IA) and has 1 valence electron.
  2. Selenium (Se) is in Group 16 (VIA) and has 6 valence electrons.
  3. Krypton (Kr) is in Group 18 (VIIIA) and has 8 valence electrons. Comparing these values, none of the options (K, Se, Kr) have the same number of valence electrons as Bromine (Br), which has 7. There might be an error in the question or the provided options. Based on the provided options, no element listed has the same number of valence electrons as Bromine.

Answer:

Based on the standard chemical definition of valence electrons determined by group number in the periodic table:

  • Bromine (Br, Group 17) has 7 valence electrons.
  • Potassium (K, Group 1) has 1 valence electron.
  • Selenium (Se, Group 16) has 6 valence electrons.
  • Krypton (Kr, Group 18) has 8 valence electrons. None of the provided options (potassium (K), selenium (Se), krypton (Kr)) have the same number of valence electrons as bromine (Br). There appears to be an error in the question or options.