百度试题 结果1 题目43. Which element has atoms with exactly four valence electrons in its ground state? C(A)Ca (B) Cr (C) Si(D)S 相关知识点: 试题来源: 解析 C 反馈 收藏
What is the period 3 element with 6 valence electrons? Which element is a transuranium element? What element in the fourth period of the periodic table has 5 valence electrons? Which element or ion has the electron configuration 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 10 4 s 2 ...
If an atom with a mass number of 202 has 122 neutrons, it is an atom of which element? What element has 53 protons and 74 neutrons? What element has 4 protons 5 neutrons and 2 electrons? What element has 6 protons, 8 neutrons, and six electrons? What is the mass num...
The electronic configuration of the element with with 2K, 8L and 5M electrons will be 1s22s22p2x2p2y2p2z3s23p1x3p1y3p1z (a) Total no. of electrons =2+8+5=15∴ Atomic No. of the element =15 (b) Total no. of s-electrons =2+2+2=6 (c) Total no. of p-electron =6+3...
"What is the name of the element that contains one electron in the orbital 5f?" My teacher said it was Actinium, but it doesn't seems to be the right answer and my personal research on the internet seems to agree aswell, as I couldn't find any element with "5f¹" and the Actiniu...
with a plurality of electron emitting elements in which the electron emission part is formed through a current carrying process with a low voltage and an image forming member in which an image is formed when it is irradiated with electrons emitted by the electron source.;COPYRIGHT: (C)2003,...
Name an element in the third period of the periodic table with six 3p electrons. Name an element in the third period (row) of the periodic table with four 3p electrons. Name an element in the third period (row) of the periodic table with three valenc...
Identify the element and the part of the periodic table in which the element with the given configuration is found. 1s22s22p63s23p64s2 Which element is a transuranium element? Identify the element: a) The element that contains 10 core electrons and 5 valence electrons. b) Its (1+) ion ...
To determine the number of electrons in the 3d shell for the element with atomic number 26, follow these steps:1. Identify the Element: The atomic number 26 corresponds to the element Iron (Fe).2. Write the E
The reaction with the strong Lewis acid SbF5 can be shown as (16.57)SbF5 + SF4 → F4S:SbF5 As a result of sulfur not being restricted to a maximum of 8 or 10 electrons in the valence shell, SF4 can also act as an electron pair acceptor, so it can behave as a Lewis acid also. ...