Select the correct electron configurations from the list below. You can refer to the periodic table for atomic numbers. Check all that apply. View Available Hint(s) The electron configuration of \( \mathrm{Au}^{+} \)is \( [\mathrm{Xe}] 4 f^{14} 5 d^{9} 6 s^{1} \). The electron configuration of K is \( [\mathrm{Ar}] 4 s^{0} 3 d^{1} \). The electron configuration of Co is \( [\mathrm{Ar}] 4 s^{2} 3 d^{7} \). The electron configuration of Si is \( [\mathrm{Ne}] 3 s^{2} 3 p^{2} \).

c) \( 13 m^{2}+8 m-6 m^{2}+4-10 m= \)

1. Find the values of \( x \) and \( y \) if i) \( (2 x+3, y-2)=(5,3) \) (ii) \( (x+3, y-2)=(y-1,2 x-3) \). If the order pair \( (p, 6) \) and \( (-4, q) \) belong toR \( =\{(x, y): 3 x+5 y=18\} \), find the values of \( p \) and \( q \). 2. Let \( A=\{2,3,4\} \) and \( B=\{1,2,3\} \) be two sets. Find \( A X B \). And also find the relations from set \( A \) to set \( B \) satisfying the conditions (i) \( x+y \leq 4 \) (ii) \( x=2 y \). And represent these relations using arrow diagram and table.

\( 4 HCl + Mn _ { n } O _ { 2 } \rightarrow Mn _ { n } Cl _ { 2 } + H _ { 2 } O + Cl _ { 2 } \)

5. The function \( f(x)=x^{3}+b x-30 \) has the following roots: 5,3 and \( n \). what is the value of \( n \) ? A) -4 B) -2 C) 2 D) 4

1 point The expression \( \frac{20 \sqrt{5}}{\sqrt{10}}-\frac{16}{\sqrt{8}} \) can be expressed in the form \( k \sqrt{2} \), where \( k \in W \). The value of \( k \) is