How many valence electrons does S^2 have? A. 3 B. 8 C. 15 D. 1 E....
Fill this out please! geometry polar? distortion structure formula electronic tetrahedral molecular H3O* # valence electrons /2 #lone pair # bonding pair 8/2 4 pairs wedged > bond coming out of plane KrF4 square planar 36/2= 18 pairs dashed > bond going below plane IFs square pyramidal 42/2 21 pairs trigonal bipyramidal no 22/2 11 pairs O3 trigonal planar 18/2 9 pairs lone pair SCIA 34/2 17 pairs CI-S-CI ci c CIF3 T shaped 28/2 14 pairs LL:A
E) [Ar]3d04s44p 2) How many lone pairs of electrons are on the O atom in OF2? A) 0 B) 1 C) 2 D) 3 3) Which atom in each group (I and II) has the smallest atomic radius? (I) Ca, Ti, Br (II) O, S, Se A) Ca; Se B) Br; Se C) Br; O D) Ca; O 4) How many valence electrons are there in a Bi atom? A) 2 B) 3 C) 4 D) 5 E) 6 5)...
1? edili u Creuil 19. How many electrons can be described by the quantum numbers 1-2,7-2, a) 0 b) 2 c) 6 d) 10 e) 14 20. In which group do all the elements have the same number of valence electrons? a) P, S, CI b) Ag, Cd, Ar c) Na, Ca, Ba d) P, As, Se e) none of these 21. List the following atoms in order of increasing ionization energy: Li, Na, C, O, F. a) Li<Na <C<O<F...
3. Draw Lewis symbols or structures for the following atoms, ions, or compounds. (a) Cs (b) MgCl2 (c) Se (d) CN- (e) P? 1. Identify polar covalent bonds or ionic bonds formed in the binary compounds below. (a) C and S (b) Al and CI (c) C and o (d) Ca and o Calcollowing molecules and
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
Can you help me answer these 5 questions please 1. How many total valence electrons will there be on the PO43- ion (a -3 ion)? 2. How many lone pairs of electrons are on the entire structure in the correct Lewis structure for CS2 ? 3. How many lone pairs of electrons will be on the central atom in the correct Lewis structure for PBr5? 4. Which fo the following atoms can have an expanded octet? A. S B. O...
c. Mg ules for drawing Lewis Structures: Count up all the valence electrons and add them up. Arrange atoms in a bonding conf round the outside. guration. Least electronegative atom typically goes in the midle. H gets arra g . Put the electron in- 2 electrons for each single bond between atoms. Put extra electrons ut any extra there. on outer atoms that can accept them as lone pairs. Hydrogen can only have two electrons so . Check that each...
b) CI d) He 2. Predict which of the following compounds are ionic and which are covalent, based on the location of their constituent atoms in the periodic table: (a) C1,CO (b) Mno (c) NCI, (d) CoBr (e) CaF (2) HI 3. Identify the more polar bond in each of the following pairs of bonds: (a) HF or HCI (b) NO or CO (C) SH or OH (d) PCI or SCI (e) CH or NH (1) SO or PO What...
question 2 and 3 (a) Complete the Lewis structure for the molecule shown below. How many lone pairs are there? (b) Give the hybridizations of the following atoms in the structure: (i) Ci) Ob (c) Give approximate values of the following bond angles: (i) O a-C a-O b; (ii) C a-O b-C b (a) Complete the Lewis structure for the molecule below. How many lone pairs are there? но (b) For the structure shown, give the hybridizations of the following...
answer all please YEN 18. The electron configuration 18-2-2p 3s 3p applies to all of the following species except ACI B. Ar C. Ca2+ D. Na Ε Κ 19. Rank the following elements in order of increasing atomic size: Ge, Rb, S, Ne A Ge<Rb Ne <S B. Rb<S<Ne <Ge C. S < Ne < Ge<Rb D. Ne <S<GeRb E Rb <e <Ne <S 20. Select the pair that has the larger atom or ion listed first. A Ca?. Ca...