Answer:
this is all the answers i hope you have a good day
Explanation:
may i please have a branlliests
Idk if this is the information you need but the energy level gets higher the farther you move down the Periodic Table. Every element in a vertical line has the same energy level.
Heat can be absorbed or produced
Answer:
0.39760273
Explanation:
I typed into calculator hope it's right.
Answer:
54
Barium atomic number is 56, this means that it has 56 protons in its nucleus and put it as a period 6 element. an uncharged barium atom would have 56 electron also. However as a group 2 element barium easily loses 2 electron to form the +2 cation. the ions has 56-2=54
