Answer:
C
Explanation:
It is most likely non metal with a high electronegativity.
Explanation:
honestly speaking the lanthanides have electron configurations that follow the Aufbau rule, and the 4f sublevel is filled as atomic number increases from cerium (Ce) to lutetium (Lu).
A proton has about 1836 times the mass of an electron. The best estimate of physicists is that the radius of a proton is about 8×10-16m and the radius of an electron is about 10-16m . If they are correct, then a proton has about ten times the diameter of an electron
The 4 second rule is used to estimate your total stopping distance under ideal conditions.
Answer:
<u><em>=355.5K</em></u>
Explanation:
Specific heat, Q = mcΔT
where
- Q= 4250J
- ΔT= change in temp = final temp - initial temp
- c = specific heat capacity = 1.7
- m = mass of substance in grams
[1 mole of Ne = 20g; 2 moles of Ne = 2 × 20 = 40g]
4250 = 40 × 1.7 × (final - 293K)
final - 293k = 4250 / ( 40 × 1.7)
Final temp = 62.5 + 293
<em>=355.5K</em>
I hope this steps are simple to follow and understand.
