Find the atomic number of an element whose atom has the electronic configuration 2, 8, 4. Q.Electronic configuration of element T is 2, 8, 7. How many valence electrons are there in an atom of T?
The most basic method would be to refer to the atomic configuration of an element and simply count the electrons in the outermost shell. However, this would be an extremely laborious task, as we may have to dig through textbooks to find configurations we do not know. However, there’s...
Identify the charge of the element. The charge of an element is equal to the number of protons minus the number of electrons. The number of protons is equal to the atomic number of the element given in the periodic table. The number of electrons is equal to the atomic number minus the ...
How do you find the simple configuration of electrons for an element? Electronic Configuration of Elements: The ground-state electronic configuration of an element is the distribution of its electrons into the shells, subshell, and orbitals in the increasing order of energies in the lowe...
Use the periodic table to determine the number of 3s electrons in Mg. How can you determine the number of valence electrons in an atom using the periodic table? How do you find the number of valence electrons of an element? Determine the numb...
首先, ___。 而且, ___。 最后但不是最不重要的, ___。[translate] aCount the electrons in each element and notice how the number increases across a period. 计数电子在每个元素和通知怎么数字横跨期间增加。[translate]
Multiply the element's atomic number by the number of atoms of this type (see Step 1) in the molecule. Repeat for all elements in the molecule, then add up all the products to calculate the number of electrons. In the first example, the number of electrons in KNO3 equals (19 x 1) ...
To determine the valence electrons in an atom, you write the electron configuration of the element in noble-gas-inner-core form. The electrons outside...Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free Ask a question Our experts can answer ...
How many valence(outer shell)electrons are present in the atoms of the element with atomic number51(about Chemistry) 答案 Sb arrangement of extranuclear electrons:1s⑵ 2s⑵2p⑹ 3s⑵3p⑹3d⑽ 4s⑵4p⑹4d⑽ 5s⑵5p⑶arrangement of valence(outer shell)electrons :5s25p3so the valence(outer shell...
Step 1:Find the number of protons in an atomic ion. The number of protons is equal to the atomic number of the element. The atomic number of potassium (K) is 19. Therefore, the number of protons is 19. Step 2:Find the number of electrons in an atomic ion ...