Lorilee362
Answered

Welcome to Westonci.ca, where finding answers to your questions is made simple by our community of experts. Experience the ease of finding accurate answers to your questions from a knowledgeable community of professionals. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

Lithium and potassium have similar chemical properties because the atoms of both elements have the same
(1) mass number
(2) atomic number
(3) number of electron shells
(4) number of valence electrons

Sagot :

they have the same number of valence electrons
jbferrado

Answer:

The correct answer is (4) number of valence electrons

Explanation:

Lithium (Li) and potassiun (K) belong to the group 1A of the Periodic Table and are called Alkali Metals. The elements of this group have only one electron in their highest energy orbital (ns¹), so they have the same number of valence electrons. Notice that Li has 1 electron in its higher energy orbital  of 2nd level (2s¹) and K has 1 electron in its highest energy orbital of 4th level (4s¹).

We hope our answers were useful. Return anytime for more information and answers to any other questions you have. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.