use the periodic table to write the electron configuration for barium (ba) in noble - gas notation. ba: 6s²
use the periodic table to write the electron configuration for barium (ba) in noble - gas notation. ba: 6s²
Answer
Explanation:
Step1: Locate barium on periodic table
Barium (Ba) is in period 6, group 2.
Step2: Identify preceding noble - gas
The noble - gas before barium is xenon (Xe). Xenon has an atomic number of 54.
Step3: Write noble - gas notation
Barium has 56 electrons. After accounting for the 54 electrons of xenon, there are 2 remaining electrons which go into the 6s orbital. So the noble - gas notation is [Xe]6s².
Answer:
[Xe]6s²