Question 1 Atoms of two adjacent elements in the third period are in the ground state An atom of element A has only s electrons in its valence
Question Atoms of two adjacent elements in the third period are in the ground state An atom of element A has
Question Atoms of two adjacent elements in the third period are in the ground state An
elements in the third period are in the ground state An atom of element A has only s electrons in its valence
Question Atoms of two adjacent elements in the third period are in the
ground state An atom of element A has only s electrons in its valence
Question Atoms of two adjacent elements in the third period
Question Atoms of two adjacent
Question 1: Atoms of two adjacent elements in the third period are in the ground state. An atom of element A has only s electrons in its valence...

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Question 1: Atoms of two adjacent elements in the third period are in the ground state. An atom of element A has only s electrons in its valence shell. An atom of element B has at least one p electron in its valence shell. Identify elements A and B. Question 2: What are the symbol, name, and atomic number of the element that has 21 protons in the nuclei of its atoms?

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