question 11\nan element in the upper right corner of the periodic table \n is either a metal or metalloid\n…

question 11\nan element in the upper right corner of the periodic table \n is either a metal or metalloid\n is definitely a nonmetal\n is either a metalloid or a nonmetal\n is definitely a metalloid\n is definitely a metal\nquestion 12\nwhich species has 54 electrons?\n ₅₂¹²⁸te²⁻\n ₅₄¹³¹xe⁺\n ₅₄¹³²xe²⁺\n ₅₀¹¹⁸sn²⁺\n ₄₈¹¹²cd

question 11\nan element in the upper right corner of the periodic table \n is either a metal or metalloid\n is definitely a nonmetal\n is either a metalloid or a nonmetal\n is definitely a metalloid\n is definitely a metal\nquestion 12\nwhich species has 54 electrons?\n ₅₂¹²⁸te²⁻\n ₅₄¹³¹xe⁺\n ₅₄¹³²xe²⁺\n ₅₀¹¹⁸sn²⁺\n ₄₈¹¹²cd

Answer

Brief Explanations:

For Question 11: Elements in the upper - right corner of the periodic table are non - metals. This is because of their high electronegativities and electron - gaining tendencies. For Question 12: The atomic number of an element gives the number of protons and in a neutral atom, the number of electrons. For ions, we adjust the number of electrons based on the charge. Xenon (Xe) has an atomic number of 54. In $^{131}{54}Xe^+$, the number of electrons is 53. In $^{132}{54}Xe^{2 + }$, the number of electrons is 52. Tin (Sn) has an atomic number of 50, so $^{118}{50}Sn^{2+}$ has 48 electrons. Cadmium (Cd) has an atomic number of 48. Tellurium (Te) has an atomic number of 52, and $^{128}{52}Te^{2 - }$ has 54 electrons.

Answer:

Question 11: is definitely a nonmetal Question 12: $^{128}_{52}Te^{2 - }$