Answer:
Lathanum .
Atomic number = 57
Symbol = La
Atomic weight = 138.9
No of energy orbitals = 6
Electronic configuration
![[Xe]6s^25d^1](https://tex.z-dn.net/?f=%5BXe%5D6s%5E25d%5E1)
Explanation:
hydrogen + oxygen = water
Answer:
pumped from ground, then carbon atoms linked together in chains of different lengths
Explanation:
Physical changes are changes affecting the form of a chemical substance, but not it's chemical composition.
The engine ran for 10 second