Condensed electron configuration of :
Ga = [Ar] 3d¹⁰ 4s² 4p¹.
O = 1s² 2s² 2p⁴
Gallium belongs to group 13 of the periodic table with 3 valence electrons. Oxygen (Atomic number = 8 and electronic configuration = 2,6) belongs to group 16 of the periodic table with 6 valence electrons. To achieve the octet stability criteria 2 gallium atoms will donate their 3 electrons each to 3 oxygen atoms.
The 3 oxygen atoms due to their high electron attracting ability will accept those electrons resulting in Ga3+ cation and O₂⁻ anion.
Thus, the formula of their compound if Ga₂O₃.
To know more about Electron configuration, refer to this link:
brainly.com/question/11530251
#SPJ4
Answer:
58425.84 kJ is released when 4.337 pounds of liquid ethanol are burned.
Explanation:
Given that:-
When 1 gram of liquid ethanol is burnt, 29.7 kJ of energy is released.
The conversion of pounds to gram is shown below as:-
1 pound = 453.6 gram
Given mass of liquid ethanol = 4.337 pounds.
So,
4.337 pounds = 453.6*4.337 grams = 1967.2 grams
Thus,
When 1967.2 gram of liquid ethanol is burnt, 29.7*1967.2 kJ of energy is released.
<u>58425.84 kJ is released when 4.337 pounds of liquid ethanol are burned.</u>
The element that will have the lowest electronegativity is an element with a small number of valence electrons and a large atomic radius.
Electronegativity of an element is the ability or power of that element in a molecule to attract electrons to its Valence electrons. The following are the properties of electronegativity:
- It increases across a period from left to right of the periodic table,
- It decreases down the periodic table groups
- Group 1 elements are the least (lowest) electronegative elements. These elements have the lowest valence electrons with a large atomic radius.
- Group 7 elements are the most electronegative elements.
Atomic radius of elements increase down a group because of a progressive increase in the number of shells occupied by electrons which increases the size. But it decreases across a period because electrons are accommodated within the same shell leading to greater attraction by the protons in the nucleus.
Learn more about electronegativity of elements here:
brainly.com/question/20348681