Answer:
I disagree, because earth rotation on its axis causes day and night, on the other hand the its revolution on the orbit around the sun causes seasons. One Rotation would means one day has completed, and one revolution would mean that one year has completed. Therefore, it's obvious that Earth's revolution takes longer than the rotation.
I hope that helps...
SCBA tanks use regular air, not pure oxygen. <span>Modern SCBA cylinders are carbon fiber wrapped aluminum. They do get hot under high temperature conditions. But, the most common ones today are tested to 6000 PSI, and filled to 4500. This gives them some buffer for increase in pressure due to heating. Furthermore, any increase in pressure from heat is usually offset by the rapid release of air as we breathe the tank down. Firefighting is heavy, hot, difficult work, and a tank of air usually lasts about 2/3 of what it states on the label.</span>
Answer:
(a) (σ2s)² (σ2*s)² (π2p)⁴ (σ2p)²
(b) (σ2s)² (σ2*s)² (π2p)⁴ (σ2p) (π*2p)
Explanation:
An N atom has five valence electrons, so a molecule of N₂ has 10 valence electrons.
Use the Aufbau Principle to place 10 electrons in the MO diagram for B, C, and N.
1.Ground state
The valence electron configuration of N₂ is
(σ2s)² (σ2*s)² (π2p)⁴ (σ2p)²
2. First excited state
One of the σ2p electrons is promoted to the next higher level, π*2p.
The valence electron configuration becomes
(σ2s)² (σ2*s)² (π2p)⁴ (σ2p) (π*2p)
Answer:
The answer is B
Explanation:
The answer is B. I got it right on Edg.
Superscript 235 subscript 92 upper U plus superscript 1 subscript 0 n right arrow superscript 140 subscript 55 upper C s plus superscript 94 subscript 37 upper R b plus 2 superscript 1 subscript 0 n.
