select the correct boxes. which two elements have the same number of valence electrons?\n| element | atomic…

select the correct boxes. which two elements have the same number of valence electrons?\n| element | atomic number |\n| ---- | ---- |\n| barium | 56 |\n| neon | 10 |\n| silicon | 14 |\n| carbon | 6 |

select the correct boxes. which two elements have the same number of valence electrons?\n| element | atomic number |\n| ---- | ---- |\n| barium | 56 |\n| neon | 10 |\n| silicon | 14 |\n| carbon | 6 |

Answer

Explanation:

Step1: Determine valence - electrons of barium

Barium has atomic number 56. It is in Group 2 of the periodic table, so it has 2 valence electrons.

Step2: Determine valence - electrons of neon

Neon has atomic number 10. It is a noble gas in Group 18, so it has 8 valence electrons.

Step3: Determine valence - electrons of silicon

Silicon has atomic number 14. It is in Group 14, so it has 4 valence electrons.

Step4: Determine valence - electrons of carbon

Carbon has atomic number 6. It is in Group 14, so it has 4 valence electrons.

Answer:

Silicon, Carbon