10 An isotope of element Y has 19 protons and 20 neutrons in its nucleus. Which is the symbol for the ion of Y?B A. ½{20}{0}x B ½{30}{3}Y* C $$ \begin{matrix} 2 0 \\ 1 9 \end{matrix} $$Y D. $$ _ { 1 9 } ^ { 3 9 } $$Y 相关知识点: 试题来...
Which element has the same number of valence electrons as phosphorus? Which element will most likely gain electrons? a. Cl b. Na c. Ne Why? What is an atom that has more protons than electrons? What element has 10 electrons? What element has 13 electrons?
An atom of an element has a proton number of 17 and mass number of 35.Which statement is definitely true to describe the atomic structure of another isotope of this element?D A It has a proton number of 17 and mass number of 35. B Its number of electrons is 18 C Its number of neu...
What chemical element has 35 protons and 36 electrons? Which element has the lowest ionization energy? What is the electron configuration of calcium, which has 20 electrons? What is the valence electron configuration for the arsenic atom?
The following species has the lowest number of electrons in the valenc... 01:33 The number of unpaired electrons present in the first excited state of... 02:01 The number of electrons in M-shell of an element with atomic number 24... 02:17 The atomic number of an element is 35. ...
5 An atom of an element has a proton number of 17 and mass number of 35.Which statement is definitely true to describe the atomic structure of another isotope of this element?B It has a proton number of 17 and mass number of 35. B Its number of electrons is 18Its number of neutrons...
(g) Select from each of the following group the element which has the largestIE (i)Na,P,CI(ii)He,Ne,Ar(iii)O,F,Na (h) Arrange the species in each group in order of decreasingIE's and in each case explain the reason for the sequence ...
Atomic Number:Atomic number of the element is equal to the number of protons present in the nucleus of the element which is denoted by symbolZ. The superscript presents on the left side of thesymbol of the element. Atomic radius: Atomic radius is the d...
On the other hand, the field distribution can be varied by moving in the electric microwave field an electrically conductive or a dielectric element which influences the spatial distribution of the field.专利引用 引用的专利 申请日期公开日 申请人专利名 US5284144 1993年3月22日 1994年2月8日 The ...
In this class of selenoproteins, selenocysteine is inserted co-translationally in response to one or more in-frame UGA codons in the selenoprotein mRNA directed to encode selenocysteine due to the presence of a Selenium Insertion Sequence (SECIS) element in the 3′ untranslated region of the mRNA...