Question

15. Yellow light has a longer wavelength than violet light. Therefore(2 points) a. Yellow light has more energy than violet light b. Yellow light has less energy than violet light c. Both yellow and violet light has the same energy and frequency d. Yellow light has higher frequency than violet light 16. Write the electronic configuration for the following elements: (2 points) a. Ga b. Al c. Al- d. cr 17. Below is the electron configuration of calcium: Ca 1s 2s 2p 3s 3p® 452 In its reactions, calcium tends to form Ca ion. Which electrons are lost upon ionization? (2 points) a. 4 s electrons b. 2 of the 3 p electrons c. 3 s electrons d. 1 s electrons 18. Circle the larger atom in each pair. (2 points) a. C or O b. Rb or Na c. Cor Al d. For Se

Answer 1

Solution=

light. solution't - yellow light has a longer wavelength than violet - yellow y violet since E=ho - E= he i longkere wavelength has lower energy Answer (b) yellow light has less energy than violet energy @ sla - 15 ²25 2p6 35 386 4 5 3d up' 6 1² A1 - 15² 25 2 po 35² 3p' to Al²t - 15 2586 ② cr - 15 25 296 35 3po ca - 152 252 286 35 3p 452 cart - 15² 25² 2p 35 36 Ans' ♡ 45 electrons are lost.