Ionization Trend: First ionization energy will increase left to right across a period and increase bottom to top of a family (column).
A) Sr, Be, Mg are all in column 2 of the periodic table. Based on the first ionization rule above, from increasing to decreasing energy, the order is: Be, Mg, Sr
B) Bi, Cs, Ba are all in the same row of the periodic table. Based on the first ionization rule above, from increasing to decreasing energy, the order is: Bi, Ba, Cs
C) Same rule as above. Order is: Na, Al, S
Answer:
The Aluminium electron configuration will be 1s^22s^22p^63s^23p^1. The configuration notation provides an easy way for scientists to write and communicate how electrons are arranged around the nucleus of an atom. This makes it easier to understand and predict how atoms will interact to form chemical bonds.
Answer:
the candle is still solid..................in this case, yes!
Explanation:
it is still solid because the molecules are packed together tighter than the molecules in a liquid or gas.
Answer:
Ca(s) + N₂(g) + 3O₂(g) → Ca(NO₃)₂ (s)
Explanation:
The reaction of the formation of Ca(NO₃)₂(s) , is as follows -
Ca + N₂ + O₂ → Ca(NO₃)₂
The above reaction , can be balanced by adding whole numbers ,
Hence , the balanced reaction is as follows -
Ca + N₂ + 3O₂ → Ca(NO₃)₂
The states of the respective molecules is -
the state at which the atoms are most stable or the state at which the atoms are most commonly found .
Hence ,
Calcium is most stable in solid state
Oxygen is most stable in gaseous state
Nitrogen is most stable in gaseous state
hence , the balanced reaction with all the states mentioned is as follows -
Ca(s) + N₂(g) + 3O₂(g) → Ca(NO₃)₂ (s) .
