1.how are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on the periodic table?2.how does the number of electrons relate to the arrangement ?what is the different in the number of electrons in a 3rd period element and the 2nd period ...
1.how are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on the periodic table?2.how does the number of electrons relate to the arrangement what is the different in the number of electrons in a 3rd period element and the 2nd period ...
1.how are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on the periodic table?2.how does the number of electrons relate to the arrangement what is the different in the number of electrons in a 3rd period element and the 2nd period ...
How many valence(outer shell)electrons are present in the atoms of the element with atomic number51(about Chemistry) 相关知识点: 试题来源: 解析 Sb arrangement of extranuclear electrons:1s⑵ 2s⑵2p⑹ 3s⑵3p⑹3d⑽ 4s⑵4p⑹4d⑽ 5s⑵5p⑶arrangement of valence(outer shell)electrons :5s25p3so ...
相关知识点: 试题来源: 解析 (a)lithium: 2.1sodium: 2.8.1potassium: 2.8.8.1They have the same number of valence electrons.All the elementshave one valence electron. 反馈 收藏
To determine which pairs are isoelectronic, we need to understand what isoelectronic means. Isoelectronic species are those that have the same number of electrons. Here’s how to analyze the given pairs:1. Identify the Atomic Numbers
Electrons in the atom As we have seen, the number ofelectrons spinningaround a nucleus is usually the same as the atomic number, so that their charges cancel out resulting in a neutral atom (neutrons are also electrically neutral, hence the name, so they don't contribute anything to the ...
The atomic mass of an atom is approximately equal to the number of protons plus the number of electrons, since the mass of electrons is practically negligible. References Purdue University: Bodner Research Web: The Atom and Electromagnetic Radiation ...
This is because breaking away from the atomic nucleus becomes the free electron under the function of voltage in most peripheral electrons in the atomic nucleus, thus produce the current, but a small part is stimulated to a higher quantum attitude and disengaged the atomic nucleus and become magn...
The given element oxygen with the atomic number 8 has the electronic configuration as follows: {eq}\rm O = 1{s^2}2{s^2}2{p^4}{/eq} The electrons... Learn more about this topic: What Are Valence Electrons? - Lesson for Kids ...