"-8 Saved Which of the following atoms has the greatest shielding for its valence electrons? Multiple...
The following properties are observed for an unknown element. Identify the element from its properties. (a) The neutral atom has two unpaired electrons. (b) One of the valence electrons in the ground-state atom has ml = +1. (c) The most common oxidation state is +4. (d) If an electron in a hydrogen atom were excited to the same principal quantum level, n, as the valence electrons in an atom of this element, and fell to the n - 1 quantum...
Which of the following regions of the electromagnetic spectrum has the highest frequency? Select one: A. Visible light B. Microwaves C. Infrared radiation D. Ultraviolet radiation onization energy is the energy required to add an electron to an atom in the gaseous state. Select one: True False In the Bohr model of the atom, the greatest energy would be emitted if an electron relaxed from the n = 5 orbit to which orbit? Select one: A. n = 2 B....
Multiple-Cholce: Select the best answer to each of these multiple choice 1. Which of the following descriptions of a subatomic particle is correct? a) A proton has appositive charge and a mass of approximately 1 amu 9. b) An electron has a negative charge and a mass of approximately 1 amu c) A neutron has no charge and its mass is negligible d) A proton has appositive charge and a negligible mass. e) A neutron has appositive charge and a...
Multiple choice. Please answer all questions 1) Which material can display Van der Waals Bonding? Metals Ceramics Metals Molecular Solids Semi-Metals 2) Which type of bonding is a secondary bonding? Metallic Covelant Ionic Pair bonding Van Der Waals 3) What type of bonding do semi-metals have? Ionic Van der Waals Mixed covalent-metallic Covalent Mixed metallic-ionic 4) Which of the following are a primary atomic bond? hybridize valence van der Waals electrical metallic 5) In Hydrogen bonds: highly polar molecules form...
Could you please give me answers for these ? thanks 1. Atomic radius decreases as we move from left to right in the periodic table. Which of the following is the BEST explanation for this trend? a. The electrons in the valence shell increase in number and thus interact more with one another as we move from left to right. b. There is more shielding of the inner electrons as we move from left to right. c. The electrons in...
3) Rank the following orbitals in order of increasing energy: 3s, 2s, 2p, 4s, 3p, ls, and 3d. 4) How many orbitals in an atom can have the following quantum number or designation? a. 3p_ b. 7s c. 4p. d. 5d . e. 5f f. n=5 5) Answer the following questions by filling in the space: a) The quantum number n describes the of an atomic orbital. b) The shape of an atomic orbital is given by the quantum number...
18. How many electrons musta se atomoeoman (083 19. Which element has the following ground state weten wir S 0 8 (3)1 (4) To 20. Which one of the following elements forma a state ani? ( P s e 21. Which iwo of the following make an electronen on on Real Poli (0) Chand (2) O and F (3) F and CH (4) Foard Cat 22. Which of the following is the electron configuration for the summ on () (3)...
Keyser Corporation, which has only one product, has provided the following data concerning its most recent month of operations Selling price $ 157 Units in beginning inventory Units produced Units sold Units in ending inventory 1,250 9,150 9,250 1,150 Variable costs per unit: Direct materials Direct labor Variable manufacturing overhead Variable selling and administrative expense Fixed costs: Fixed manufacturing overhead Fixed selling and administrative expense $ 73,200 $166,000 The company produces the same number of units every month, although the...
answer QUESTIONS 1 - 20,3.5 POINTS EACH 1. Which of the following has a AHºr=0? AN) BOC) C.1.0 MH(aq) D. O2(g) E. none is on 2._ If a reaction is carried out under constant pressure conditions, it's always true that A. q- AH B.4-AE C.4"W D. both A and C are correct D. none of the answers is com 3. 0.103 g zinc reacts with 50.0 ml. of an hydrochloric acid solution (an excess of HCT) in a constant presses...
Explain the answer please. ) 1 on electronegativity differences, which of the following is most likely to be ionie? BaF2 b) Bra c) PH d) NO e CL 6. How many electrons can be contained in all of the orbitals with n-4? c) 10 d) 18 32 Which of the following molecules has no dipole moment? mause it is a Hencar wno 7. NH c) H20 d) all e) none 8. How many electrons can be described by the quantum...