Chemistry · Structure of the Atom
The table below shows information about three elements X, Y, and Z. Some values are missing and are represented by l, m, and n. ElementAtomic numberMass numberNumber of neutronsX1123lY1735mZn4020 The values of l, m, and n are respectively:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 112, 18, 20✓
- 211, 11, 12
- 312, 18, 19
- 411, 17, 20
Correct answer
12, 18, 20
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