
has a higher nuclear charge and holds its Both AB+ and N3-have 10 electrons and are...
1. Which element has larger Effective Nuclear Charge? Li or K I thought it would be Li because it has 2s1 as valence electron and this is closer to the nucleus with less shielding...would this not be the one with the highest effective nuclear charge. the answer says that its K which has a higher nuclear charge and this charge is countered by shielding of the core electrons but wouldn't K have a lower effective nuclear charge as it is...
Suppose you have 1.7 mols of Hydroxide (OH-) ions. What is the total nuclear charge of these molecules? What is the total electron charge of these molecules? What is the total combined charge of these ions? Please answer in coulombs
1. What is the maximum number of unpaired electrons that can occupy each of the following subshells? a. 3p, b. 5d c. 2s d. 4f 2. Identify the specific element that corresponds to each of the following electron configurations and indicate the number of unpaired electrons for each. a. 1s 2 2s 2 b. 1s 2 2s 2 2p 4 c. [Ar]4s 1 3d 5 d. [Kr]5s 2 4d 10 5p 4 3. Note: The atomic radius of an element...
eleven an energy level? eren 15) Why does it take more energy to remove an electron from Althan from Al? 16) Distinguish between an atom in its ground state and an excited atom. 17) Which of the following notations shows the electron configuration of a neutral atom in an excited state? Name the element, and explain how you know if it is excited or not: 1s 2s 2p' (b) 1s 2s 2p 3s! Oxygen is in excited States oxygen crtom...
Which of the following ions has the greatest number of unpaired electrons in its ground-state electron configuration? Ni3+ Fe3+ Co3+ Sc3+ Cr3+
An atom has 38 protons and 48 neutrons. 16. How many electrons does it have? 17. Give the complete electron configuration for this element. 18. How many valence electrons does it have? 19. In which period of the periodic table is it found? 20. What is the charge on the ion it forms? 21. This ion will now have the same electron configuration as what neutral atom?
a) What drives an atom to form a covalent bond its nuclear charge or the need to have a filled outer shell? b) Why is the shape of a molecule determined by repulsions between electron pairs and not by repulsions between nuclei? Explain/discuss both.
In the Y3+ cation, in its ground state, how many electrons have ml = 0 ? In the Ga+ cation, in its ground state, how many electrons have ml = +1 ? In the Ni5+ cation, in its ground state, how many electrons have ml = 0 ? In the Zn2+ cation, in its ground state, how many electrons have both ml = 0 and s = +1/2 ? In the Cr6+ cation, what is the effective charge felt by...
please answer all of the following questions. no work needs to be
shown.
mHg and-1 6) Identify the isoelectronic elements. A) Zn2+, Co2+, Cu2+, C:2+, Cd2+ B) Cl-, F-, Br,F, At C) Ne, Ar, Kr, Xe, He D) P3-, s2-, C1-, Kt, Ca2 E) N3-, S2-, Brr, Cst, Sr2+ 7) Which reaction below represents the electron affinity of S? A) S (g) + e B) S(g) ) S(g)+e S(g) D) S2-(8) S(g) + e E) S (g) S(g)+e 82 (g)...
An atomic
cation with a charge of
+1
has the
following electron configuration:
1s22s22p63s23p63d54s1
What is the chemical symbol for the ion?
How many electrons does the ion have?
How many 2p electrons are in the ion?
An atomic cation with a charge of +1 has the following electron configuration: 1822s²2pº3s23p 3d 48 What is the chemical symbol for the ion? How many electrons does the ion have? How many 2p electrons are in the ion? 1 1 x 6...