01. Find "x" in the following Dobereiner triad: Element Ca Sr Ba P.A 40 x 138 a) 88 b) 89 c) 90 d) 91 e) N.A 02. The mineral "PYRITA" contains sulfur S (Z = 16). To what period and group does this element belong in the periodic table? a) 4 - VIA b) 3 - VIA c) 2 - VIA d) 3 - VA e) 3 - VAT 03. Locate an element with 40 nucleons, if its atom has 21 neutrons: a) VI A, 2 ° b) IA, 3 ° c) IA, 4 ° d) II B, 3 ° e) II A, 5 ° NUCLEONS: A = Z + n ° Z = p + = e- 40 = Z + 21 Z = 40 - 21 = 19 04. An atom of an element has 5 paired orbitals in the "M" shell: 3 LEVEL To which group does it belong? a) III A b) V A c) VI B d) VIII B e) VI B 05. Indicate the true (V) and false (F) propositions in: (F) Chlorine and sulfur are transitional (F) Gold and silver are internal transition (F) Hydrogen and sodium are group B
01. Find "x" in the following Dobereiner triad: Element Ca Sr Ba P.A 40 x 138 a) 88 b) 89 c) 90 d) 91 e) N.A 02. The mineral "PYRITA" contains sulfur S (Z = 16). To what period and group does this element belong in the periodic table? a) 4 - VIA b) 3 - VIA c) 2 - VIA d) 3 - VA e) 3 - VAT 03. Locate an element with 40 nucleons, if its atom has 21 neutrons: a) VI A, 2 ° b) IA, 3 ° c) IA, 4 ° d) II B, 3 ° e) II A, 5 ° NUCLEONS: A = Z + n ° Z = p + = e- 40 = Z + 21 Z = 40 - 21 = 19 04. An atom of an element has 5 paired orbitals in the "M" shell: 3 LEVEL To which group does it belong? a) III A b) V A c) VI B d) VIII B e) VI B 05. Indicate the true (V) and false (F) propositions in: (F) Chlorine and sulfur are transitional (F) Gold and silver are internal transition (F) Hydrogen and sodium are group B
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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01. Find "x" in the following Dobereiner triad:
Element Ca Sr Ba
P.A 40 x 138
a) 88 b) 89 c) 90 d) 91 e) N.A
02. The mineral "PYRITA" contains sulfur S (Z = 16). To what period and group does this element belong in the periodic table?
a) 4 - VIA b) 3 - VIA c) 2 - VIA d) 3 - VA e) 3 - VAT
03. Locate an element with 40 nucleons, if its atom has 21 neutrons:
a) VI A, 2 ° b) IA, 3 ° c) IA, 4 ° d) II B, 3 ° e) II A, 5 ° NUCLEONS: A = Z + n ° Z = p + = e- 40 = Z + 21 Z = 40 - 21 = 19
04. An atom of an element has 5 paired orbitals in the "M" shell: 3 LEVEL To which group does it belong?
a) III A b) V A c) VI B d) VIII B e) VI B
05. Indicate the true (V) and false (F) propositions in:
(F) Chlorine and sulfur are transitional
(F) Gold and silver are internal transition (F) Hydrogen and sodium are group B
a) VVV b) VVF c) FVF d) FFF e) VFV
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