the electronic configuration of element x 2 8 8 1 and y 2 7 and write the formula of the compound formed when they combine
The 1 electron in the outside shell of x is removed (to leave 8 in xs outside shell) and added to the 7 electrons in the outside shell of y (to make 8 in its outside shell) so the formula will be xy.
answer of the question
The election confiquration of element x any as follow element x y election confiquration 2,8,8,1 2,7
Potassium is 19(k) 2,8,8,1 while flourine is 9(f) 2,7
Thus; potassium will give out one electron to florine, which makes it 2,8,8 and 2,8
K+F-
That was really helpful, but I have another question
Will potassium fluoride be soluble in water
To determine the formula of the compound formed when elements X and Y combine, we need to consider their electronic configurations.
Element X has an electronic configuration of 2 8 8 1. This means that it has two electrons in the first energy level (n=1), eight electrons in the second energy level (n=2), eight electrons in the third energy level (n=3), and one electron in the fourth energy level (n=4).
Element Y has an electronic configuration of 2 7. This means that it has two electrons in the first energy level (n=1) and seven electrons in the second energy level (n=2).
Now, let's analyze the electron configurations to determine how these elements combine.
Element X has one valence electron, which is the electron in the outermost energy level (n=4). Element Y has seven valence electrons, which are the electrons in its outermost energy level (n=2).
In general, elements tend to react in a way that allows them to achieve a stable electron configuration similar to the noble gases. One way to achieve a stable electron configuration is through the transfer of electrons. In this case, element X can donate its valence electron to element Y, as element Y requires one more electron to achieve a stable configuration.
As a result, element X loses one electron and becomes positively charged, while element Y gains one electron and becomes negatively charged. The charges on the elements help us determine the formula of the compound they form.
Since element X loses one electron, it becomes X+, and since element Y gains one electron, it becomes Y-. The charges on the elements indicate that they will combine in a ratio that balances their charges.
To write the formula of the compound formed, we typically use the crisscross method to ensure that the overall charge of the compound is neutral.
In this case, since both elements have charges of magnitude 1, the crisscross method is unnecessary. Thus, the formula of the compound formed when elements X and Y combine is XY.
Therefore, the compound formed when elements X and Y combine is XY.