Interpretation:
The term “
Concept introduction:
Electron affinity
The larger and more positive value of
The effective nuclear charge and the electron configuration of an element are two important factors while comparing the electron affinities.
Electron affinities tend to increase along the period, while down the group, it tends to decrease.
The first electron affinities are generally positive, but the subsequent electron affinities are always negative.
The amount of energy required in order to remove an electron from a gaseous atom from its valence shell is called as the ionization energy.
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Chemistry
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- give the ground-state electron configuration of the following elements. for example, carbon is 1s^2 2s^2 2p^2 (a) lithium (b) sodium (c) aluminum (d) sulfurarrow_forwardConsider the general valence electron configuration of ns2np5 and the following statements:(i) Elements with this electron configuration are expected to form -1 anions.(ii) Elements with this electron configuration are expected to have large positive electron affinities.(iii) Elements with this electron configuration are nonmetals.(iv) Elements with this electron configuration form acidic oxides. Which statements are true? Consider the general valence electron configuration of ns2np5 and the following statements:(i) Elements with this electron configuration are expected to form -1 anions.(ii) Elements with this electron configuration are expected to have large positive electron affinities.(iii) Elements with this electron configuration are nonmetals.(iv) Elements with this electron configuration form acidic oxides.Which statements are true? (i), (iii,) and (iv) (ii) and (iii) (i), (ii), and (iii) (i) and (ii) All statements are true.arrow_forward(a) The electronic configuration of a certain element known as element A, is 1s22s22p3. Write a balanced equation to represent the first (1st) ionization energy of element A. Use “A” as the symbol of the element. Include the physical states used. Either: Sketch and insert a graph showing the general form which you would expect for the seven ionization energies of element A, labelling the axes. Or Describe the graph that could be drawn, which should include the following: What is the label on the vertical axis of the graph, include units? What is the label on the horizontal axis of the graph? Describe the pattern expected in the graph Describe the shape of the amide ion (NH2-), using Valence Shell Electron Pair Repulsion (VSEPR) theory. State the bond angles and the shape of the amide ion. You may sketch and insert a suitable diagram to aid your description if…arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co