If an atom suffers from a collision, that causes an electron to jump from a lower to higher state, it is called collisional excitation
1s2 2s2 2p2 i hope this helps
Answer:
Changes in Properties Changes in properties result when new substances form. For instance, gas production, formation of a precipitate, and a color change are all possible evidence that a chemical reaction has taken place. ... Change in Color A color change can signal that a new substance has formed.
Explanation:
Answer:
C. oxygen atom
Explanation:
H2O contains two hydrogen atoms and one oxygen atom.
No. of moles = mass / molar mass
= 100/35.5
