2 fill in the blank 1 point barium (ba) has type your answer... energy levels and type your answer…
2 fill in the blank 1 point barium (ba) has type your answer... energy levels and type your answer... valence electrons.
Answer
Answer:
6; 2
Explanation:
Step1: Determine energy - levels
Barium has atomic number 56. Its electron - configuration shows it has 6 energy levels.
Step2: Determine valence electrons
Barium is in Group 2 of the periodic table. Elements in Group 2 have 2 valence electrons.