elements are organized on the periodic table based on their properties. which statement correctly predicts…

elements are organized on the periodic table based on their properties. which statement correctly predicts and explains the chemical reactivity of two different metals?\no barium (ba) is less reactive than calcium (ca) because the valence electrons in calcium atoms are farther from the nuclei and harder to remove.\no strontium (sr) is more reactive than magnesium (mg) because the valence electrons in strontium atoms are farther from the nuclei and harder to remove.\no rubidium (rb) is more reactive than sodium (na) because the valence electrons in sodium atoms are closer to the nuclei and easier to remove.\no lithium (li) is less reactive than potassium (k) because the valence electrons in lithium atoms are closer to the nuclei and harder to remove.

elements are organized on the periodic table based on their properties. which statement correctly predicts and explains the chemical reactivity of two different metals?\no barium (ba) is less reactive than calcium (ca) because the valence electrons in calcium atoms are farther from the nuclei and harder to remove.\no strontium (sr) is more reactive than magnesium (mg) because the valence electrons in strontium atoms are farther from the nuclei and harder to remove.\no rubidium (rb) is more reactive than sodium (na) because the valence electrons in sodium atoms are closer to the nuclei and easier to remove.\no lithium (li) is less reactive than potassium (k) because the valence electrons in lithium atoms are closer to the nuclei and harder to remove.

Answer

Brief Explanations:

The reactivity of metals in the same group of the periodic - table increases as you go down the group because the valence electrons are farther from the nucleus and easier to remove. Lithium and potassium are in the same group (Group 1 - alkali metals), and potassium is below lithium. So, lithium is less reactive than potassium because its valence electrons are closer to the nucleus and harder to remove.

Answer:

Lithium (Li) is less reactive than potassium (K) because the valence electrons in lithium atoms are closer to the nuclei and harder to remove.