Electron configuration of Mg is - [Ne] 3s²
Mg²⁺ ion is formed after the two outer shell electrons are removed and the new configuration is [Ne]
options given and their respective electron configurations are as follows
A. Na⁺ - [Ne]
B. Ca²⁺ - [Ar]
C. S²⁻ - [Ar]
D. Cl⁻ - [Ar]
the ion with same electron configuration as Mg²⁺ is Na⁺
answer is A . Na⁺
Cell, Tissue, Organ, Organ System, Organism
A.134 sorry if it’s wrongggg
Answer:
345J
Explanation:
-mass of iron (m) = 10.0 g
-temperature (ΔT) = final temperature- initial temperature= 100-25= 75 degree Celsius
-Specific Heat capacity of iron (c)= 0.46J/g°C.
Heat (Q)=?
Solution:
Formula for Heat is :
Q=m x c x ΔT
Q= 10 x 0.46 x 75
Q= 345 J.
so, 345 joules of heat are needed to increase the temperature of 10 grams of iron.
From the above formula, all other questions can easily be solved from the same procedure.
Answer:
are you silly your question is opposite silly