Answer:
6s
Explanation:
Barium is in group 2 of the s block and is in period 6.
Answer:
A:temperature
Explanation:
The temperature cannot be determined by looking at the spectra of the star due to lack of the equipment for its measurement. <em>On the other-hand, the remaining statements like the distance from earth, movement towards or away from earth can be determined.</em>
Answer:
all atoms must have 6 protons to be a carbon atom
Explanation:
brainliest?
It is A)The smallest unit of Ne
It teacts with OH and makes water and salt
