Elements are organized on the periodic table based on their properties. Which statement correctly predicts and explains the chemical reactivity of two metals?
Answer
A
Rubidium (Rb) is more reactive than strontium (Sr) because strontium atoms must lose more electrons.
B
Sodium (Na) is more reactive than magnesium (Mg) because sodium atoms must gain more electrons.
C
Calcium (Ca) is less reactive than potassium (K) because potassium atoms must lose more electrons.
D
Beryllium (Be) is less reactive than lithium (Li) because beryllium atoms must gain more electrons.