6 Rubidium has two isotopes, Rb and Rb.Which statement explains why both isotopes have the same chemical properties? B A They have the same number of protons. B They have the same number of outer shell electrons. C They have different numbers of neutrons. D They have different mass numbers...
aI agree with you. This client will have new orders soon, so we can add these items in the new orders. 我同意您。 这个客户很快将有新的命令,因此我们可以增加这些项目按新的顺序。[translate] aMoves the Z attribute of the sides toward or away from each other. 移动边的Z属性朝或从彼此。[...
In terms of the electron configuration, a group consists of a series of elements which have the same outermost electronic configurations but they have different total numbers of electrons. In the periodic table, there are a total of 18 groups.- The elements belonging ...
Which of the following groups of elements are likely to have substances that have both metallic and non-metallic properties? - Actinides - Group 18 - Lanthanides - Group 14Which of the following groups of elements contains the most valence electrons?...
awith different impurities added,semiconductors are made into two types-the N-type,which is ready to give up electrons,thus having a negativecharacter,and the P-type,which is liable to accept electrons,therefore being of a positive character. 用增加的不同的杂质,半导体被做成二个类型这N类型,...
The electronic configuration of atoms having less than or equal to 14 electrons is different from the atoms having more than 14 electrons. This is due to the fact that mixing or overlapping of 's' and 'p' atomic orbitals take...
A beryllium atom is stripped of all but one of its electrons. What is the energy of the ground state?The ground state electronic configuration of a neon atom is 1s^2\ 2s^2\ 2p^6 How many of these electrons have magnetic quantum number m_l=0?
Orbitals are spaces that have a high probability of containing an electron. In other words, an orbital is an area where the electrons live. There can betwo electronsin one orbital maximum. What is L in n l rule? The “n” and “l” in the (n + l) rule are thequantum numbers used...
Which one of them is expected to have the highest E^o _M^{3+/{M^{2+} value? a) Cr (Z=24) b) Mn (zA certain element has its outermost electron in a 2s subshell. It has valence +1 because it has 1 more electrons than a certa...
Electronegativity: The electronegativity of an atom of an element is a measure of the force with which the atom pulls on the shared electrons in a covalent bond. The index is important to investigate the type of bond that exists between atoms of two elements: ...