(References Use the References to access important values if needed for this question. 1A H2A BA 4A SA EA 7 He u Be BCN

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References Use The References To Access Important Values If Needed For This Question 1a H2a Ba 4a Sa Ea 7 He U Be Bcn 1 (43.43 KiB) Viewed 22 times

(References Use the References to access important values if needed for this question. 1A H2A BA 4A SA EA 7 He u Be BCN O F Ne Na MgO 40 50 60 70 - 20 L SI P S Cl Ar K Ca SCCO MO E CON 4 20 Ga Ge As Se Br Kr SZENG MOTOR B P Ag Ca S STX BALI MBADA DE Rn Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu THROUND Pu Am C B C Es Fm Md No LG (1) The element with an electron configuration of 1s 2s 2p3s 3p 4s 3d is in group and period (2) The element with an electron configuration of 1s²2s 2p 3s 3p! is in group and period Submit Answer Try Another Version 2 item attempts remaining