Task 3 合 31. This question is about atoms, elements and compounds.(a) Which particle in the atom has the lowest mass?Tick (V) one box.Electron Neutron Proton(b) Which particle in the atom has no charge?Tick (V) one box.Electron Neutron Proton(c) An atom of beryllium is represented...
Which atom has the higher electronegativity: O or P? Electronegativity of an Atom: Electronegativity of an atom is its ability to attract shared electrons in the covalent bond. The element which attracts more shared electrons has the higher value of the electronegativity. ...
1 Which statement about the subatomic particles in an atom is correct? A Electrons have a relative mass of one. B Neutrons and electrons are both found in the nucleus. C Neutrons have a positive charge. D Protons have a relative mass of one.Your answer D 相关知识点: 试题来源: 解析...
In each pair of atoms, which has the larger atomic radius? Which is more electronegative? (b) C vs. O Verified step by step guidance 1 <insert step 1: Understand the periodic trends for atomic radius and electronegativity.> <insert step 2: Identify the ...
Consider the element magnesium. Which statement is true? (a) It is in Group 5A. (b) It is a noble gas. (c) A magnesium atom has electrons in nine shells. (d) It is an alkaline earth metal. MgO is a ceramic compound. The electronegativity values of ...
1 Which statement describes the structure of an atom?(3)(1) The nucleus contains positively charged electrons.(2) The nucleus contains negatively charged protons.(3) The nucleus has a positive charge and is surrounded by negatively charged electrons.(4) The nucleus has a negative charge and is...
To solve the question, we need to identify an element that has a total of two electron shells and three electrons in its valence shell. Here’s a step-by-step breakdown of the solution:Step 1: Understand the Concept of Electron Shells</
In which of the following , central atom does not have one lone pairs of electron ? APCl5 BNH3 CPCl3 DXeF6Submit In which of the following, the central atoms has two lone pairs of electrons ASF4 BB2H6 CSO2 DXeF4Submit In which of the following the central atom has two lone pairs...
Gombu00e1s's idea of groupingelectrons into n- and nl-shells in the Thomasu2013Fermi theory of freeatoms briefly, the TFG n- and TFG nl-models respectively).Using these models, exact analytical expressions for the total energyE and the atomic form factor F(u03ba) are obtained. All ...
百度试题 结果1 题目31 An atom of calcium-48 can form a 2+ ion.Which statements about this ion are correct?B1 It has 20 protons.2 It has 28 neutrons.3 It has 22 electrons. 相关知识点: 试题来源: 解析 B 反馈 收藏