Chem Q1 Question 25

CrCl3CrCl3 Express your answer as an ion.

Predict the larger ion in each of the following pairs. (a)   Rb+ or Sr2+     _________rubidium ion or strontium ion (b)   Co2+ or Co3+     _________cobalt(II) ion or cobalt(III) ion (c)   S- or S2-     _________sulfur -1 ion or sulfide ion (d)   Br- or I-        _________bromide ioniodide ion

Please refer to the image attached.

1. Using the various group classifications from the periodic table, assign all appropriate labels to each of the following elements. Each element will have multiple (2 or more) answers. (a) Silver (b) Tennessine (c) Samarium (d) Antimony 2. Calculate the numbers of each type of nucleon and the number of electrons in each of the following species. (a) neodymium-149 (b) tantalum-179 (c) sellenium-79 dianion (d) krypton-85 trication 3. Write the ground-state electron configuration for the following atoms or ions. Use core notation in your electron configurations at your own discretion. (a) As (b) Au (c) Ce (d) Zn2− (e) Po4+ 4. Write an appropriate set of four quantum numbers (n, l, ms & ms) that could be representative of a valence electron in each of the following atoms or ions. (a) Bi (b) Sr (c) Mo (d) Ru2+ (e) Eu 5. In theory, there are an infinite number of energy levels and atomic orbital types that we can define using the solutions to the Schrödinger…

27 Be sure to answer all parts. X 02:01:01 The following table gives numbers of electrons, protons, and neutrons in atoms or ions of a number of elements. Atom or Ion of Element Species A Species B Species C Number of Electrons 9 10 18 Number of Protons 9 19 Number of Neutrons 10 20 (a) Which of the species are neutral? A B C (b) Which are negatively charged? (c) Which are positively charged?

Predict chemical formula for cu2+ and p3+

How can I tell the charge of NaCH3COO, NaCl, and HCH3COO? Just in general I am not sure of how to determine the charge of compounds, so if that could be explained?

Question 29- (please look at attached images for a special periodic table that you may need to use, also please show all of your work so I can understand going forward)  For this problem, draw all hydrogen atoms explicitly.  Draw the structure of the following:  2-boguso-3-butylphenol (boguso is Bg on the special periodic table)

Question A11 (a) Write the full electronic configuration of Cu, using s,p,d,f notation. (b) Complete the table below: Atom/Ion 64 Ni2+ 28 Proton Neutrons Electrons (c) Predict whether Na or Cl has the more stable 1s² shell and explain your rationale. (d) What three factors can influence the Ionization energy of group 2 elements?

Be sure to answer all parts. The following table gives numbers of electrons, protons, and neutrons in atoms or ions of a number of elements. Atom or Ion of Element Species A Species B Species C Number of Electrons 5 Number of Protons 5 Number of Neutrons 5 36 18 35 19 46 20 (a) Which of the species are neutral? A в ос (b) Which are negatively charged? A В (c) Which are positively charged? A

Can you please solve all of the sub questions and show all of the work