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Which element would you expect to be less metallic?(a) Cs or Rn(b) Sn or Te(c) Se or Ge
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- Which element would you expect to be more metallic?(a) Ca or Rb(b) Mg or Ra(c) Br or IWhich element is a main-group metal? (a) O (b) Ag (c) P (d) PbIn which of the following species is the difference betweenthe number of protons and the number of electrons largest?(a) Ti2+ (b) P3- (c) Mn (d) Se 2- (e) Ce4+
- 1. An element has the following electronic configuration: [Kr]4d105s25p4(a) What period does it belong to?(b) What is its group number? (Use group numbers from 1 to 18)(c) What kind of element is it? (Main group metal, transition metal, metalloid, nonmetal?)(d) How many unpaired electrons are there in an atom of this element? 3. (a) Which of the following atoms or ions is diamagnetic?Li+ Ni2+ Al Fe2+ Mn3+(b) Which of the following atoms or ions is paramagnetic?C4- S4+ V4+ Se2- Ge4+Which element would you expect to be less metallic?(a) Sb or As(b) Si or P(c) Be or NaArrange in order of increasing nonmetallic character. (Use the appropriate <, =, or > symbol to separate substances in the list.) (a) the Period 4 elements V, Ge, and K (b) the Group 5A elements N, As, and Bi Arrange in order of increasing atomic size. (Use the appropriate <, =, or > symbol to separate substances in the list.) (a) the Period 3 elements Mg, Si, and Ar (b) the Group 2A elements Ca, Ba, and Sr
- choose three . What are the characteristerses of a metal like element? (a) they try to get additional electrons (b) they are melleable. (c) they are lightly to give away or share electrons. (d) they are good conductors of electricityWhich of the listed elements is most metallic?(a) Al (b) N (c) P (d) OArrange in order of increasing atomic size. (a) the period 3 elements Cl, Na, and Ar (b) the Group 2A elements Ca, Be, and Mg
- Which of the following elements is expected to have the highest SECOND IONIZATION ENERGY: (A) Be (B) Ca (C) Mg (D) NaWhich one has the largest atomic radius? (A) Be (B) Mg (C) Ca (D) Ba Which one has the largest atomic radius? (A) Li (B) C (C) N (D) Ob) For each pair indicate which Ion you would expect to have the largest Radius: (a) 02 and O; (b) N³ and Mg2+ (c) Al3* and Al