False. An increase in temperature is an exothermic reaction. However, when a temperature decreases this is known as an endothermic reactionz
Answer:
<em>yes</em>
Explanation:
the cuttle fish tell the difference between blue and yellow
Answer:
6L
Explanation:
<em>if it's 3L per 200kPa</em>
then it would be;
4L per 300kPa
5L per 400kPa
6L per 500kPa
that's how i'd work it out in my head, hope it helps, but not sure though!
Explanation:
Electronic configuration of uranium is given below -
1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁶4f¹⁴5d¹⁰6s²6p⁶5f³6d¹7s2²
Effective nuclear charge (Z eff) = Atomic number (Z) - Shielding constant (S)
<u>
Value of Shielding constant (S) can be calculated by using slater's rule :
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S = 1 (0.35) + 9 (0.85) + 81 (1.00)
S = 0.35 + 7.65 + 81.00
S = 89
So,
Zeff = Z - S
Zeff = 92 - 89
<u>
Zeff = 3
</u>
Hence, Effective nuclear charge (Zeff) of uranium = <u>3
</u>
5s electron is closest to the nucleus.
Ionic substances formed from complete transfer of electrons from one atom to another causing electrostatic attraction
