the electronic configuration at an element *is 1s2 2s2 2p6 3s2 3p2 a-deruse the. atomic numbers of* b- to which group does * belongs c- given two properties of the group to which the element*belongs d- identity elements* by name e- write balanced equation to represented the reaction between elements* and hot concentration Noah
I have no idea what "deruse" means.
Count the number of electrons. The atomic number will be the same since an atom is neutral so protons must equation electrons.
The element must be Si. You can look up the properties and the reaction with NaOH. By the way that is NaOH and not NoaH. You would do well to proof your posts.
To answer your questions:
a) The given electronic configuration of an element is 1s2 2s2 2p6 3s2 3p2. This electronic configuration represents the arrangement of electrons in the different energy levels (shells) and orbitals of the atom. In this case, the atomic number can be determined by counting the total number of electrons, which is 2 + 2 + 6 + 2 + 2 = 14. Therefore, the atomic number of this element is 14.
b) To determine the group to which the element belongs, you need to know its position in the periodic table. The group number corresponds to the number of valence electrons (outermost shell electrons). For example, elements in Group 1 have 1 valence electron, while elements in Group 2 have 2 valence electrons. In this case, since the electronic configuration ends in 3p2, the element belongs to Group 14.
c) Two properties of Group 14 elements (also known as the Carbon Group) are as follows:
1. They have four valence electrons, which makes them versatile in forming covalent bonds and allows them to participate in hybridization.
2. They exhibit both metallic and non-metallic properties, which means they can have characteristics of both metals and non-metals.
d) Without knowing the name of the element in question, it is not possible to identify it by its name. However, the element with atomic number 14 is Silicon (symbol: Si).
e) To write a balanced equation representing the reaction between element X and hot concentrated Noah, we will need to know the chemical equation or reaction that occurs. Without that information, it is not possible to provide a specific balanced equation.
I hope this helps! Let me know if you have any more questions.