Homework Answers
(a) Radium
If you goes down the group, the number of shells increases.
In peridoic table, alkali earth metals are in group 2. So, the element which is present in end will have more atomic radius
(b) ns2np5
The elements present in group 7 are called halogens. Flourine (2s22p5); Chlorine (3s23p5); Bromine (4s24p5) etc...
(c) Krypton (kr)
(d) larger; Vanderwaal radius for K is 280 pm and for F is 150 pm
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Using a periodic table, fill in each of the following blanks with the most appropriate answer....
please help Prep Work #9 CHM 1210-03 Use the following clues to fill in the periodic table provided below. Use the...
please help
Prep Work #9 CHM 1210-03 Use the following clues to fill in the periodic table provided below. Use the letnernje but are no the actual element symbol. The following groups of elements have similar properties but are not necessarily listed in the correct order AFKZ, DIU, HOP, CLVY, BJX, EMS, GOW,NRT .P has 3 energy levels as do A and G C has the greatest mass number on the table . N is a metalloid with 5 valence...
1. Name the neutral element(s) in the fourth period of the periodic table which has: a)...
1. Name the neutral element(s) in the fourth period of the periodic table which has: a) 7 valence electrons (name two elements) b) [Ar] 4s23d104p2 configuration c) the alkaline earth metal d) the largest atomic radius e) the halogen f) diamagnetic electron configurations (name all elements)
PERIODIC TABLE REVIEW WORKSHEET 1. Match the man with his contribution to (A) Lothar Meyer with...
PERIODIC TABLE REVIEW WORKSHEET 1. Match the man with his contribution to (A) Lothar Meyer with his contribution to the Periodic Table: Doberiner (A) groups of 3.elements, called triads (C) Dmitri Mendelevey (8) graphed atomic weight Vs atomic volune.meyer nendeleyev (c) properties repost every oth element-Newlanas (C) proper (E) Henry Moseley (D) used X-rays to define "atomic numbers'-moseley (E) "periodic law" based on atomic weights-menckeleen 2. Identify an A periodic tables (A) period (D) transition metal (G) inert gas (Group...
Chemistry CHE 140, 170, 180 о Goal: With reference only to the periodic table, to write...
Chemistry CHE 140, 170, 180 о Goal: With reference only to the periodic table, to write the electron configuration of the ground state (lowest energy), gaseous, atoms. Tools: (1) A list of the electronic sublevels within the atom in order of their increasing energy. (Write the list, 1s 2s 2p <6s, in the boxes below as indicated, by inspection of the "Aufbau" diagram or of the periodic table, where the order is explicit) (ii) Fill in the box below each...
Report: Periodic Properties Valence Electrons +Electron Configurations 1. Give the condensed electron configuratio...
Report: Periodic Properties Valence Electrons +Electron Configurations 1. Give the condensed electron configuration for the following elements. Rb d. I a. b. С e. Ca c. Si f. Pb Give the number of valence electrons for each element. 2. d. Br a. Al b. Rb c. Ar 3. Across a period of the periodic table (left to right), valence electrons... Circle the correct choice: (increase / remain the same / decrease) Down a family of the periodic table (top to...
Give the name of the element fitting each of the following descriptions. a. The element whose...
Give the name of the element fitting each of the following descriptions. a. The element whose +3 cation has the same configuration as krypton. b. The element whose -2 anion has the same configuration as xenon. c. The element from the first 10 elements that would be most similar in properties to franicum. d. The Period 2 element having 4 valence electrons. e. The Period 4 element having a half filled p subshell in the valence shell. f. The Period...
20. An atom of which of the following elements has the smallest ionization energy? A. CI...
20. An atom of which of the following elements has the smallest ionization energy? A. CI C. Si B. P DS 21. An atom of which of the following elements has the largest second ionization energy? A. Cs С Ро B. Pb D. Ba Q89. 22. Which of the following forms the most stable anion in the gas phase? A. CI (electron affinity -349 kJ/mol) B. S (electron affinity = -200 kJ/mol) CO (electron affinity = -141 kJ/mol) D. C(electron...
Using the attached sheet, find where each element is located on this new periodic table. Period->...
Using the attached sheet, find where each element is located
on this new periodic table.
Period-> Moun is 16 HS hydrogen He 4.C02802 boron riges oxyge fuoring 1.00794 thlum beryllium F 18.0904 10 Ne 20.1797 12.0107 | 140057415994 Li Be 9012112 magnesium 18 6941 sodium 11 AI Р 30.97375 26.981536 Na Mg 22.99977 243050 potassium CI Ar 35.453 39.984 krypton 36 Kr 73.904 103.799 Ga edicium 20 Ca Ge As Se 7264 K 39.098340.078 LJ mo their proper position on...
Which list incudes elements with the most similar chemical properties? B) Cr, Pb, Xe 37) D)...
Which list incudes elements with the most similar chemical properties? B) Cr, Pb, Xe 37) D) N, O, F O,S, Se C) As the elements in Period 3 are considered in order of increasing atomic number, there is a general decrease in C) atomic mass D) atomic radius A) first ionization energy B) electronegativity Element K reacts with chlorine to form an ionic compound that has the formula XCl,. To which group on the Periodic Table coul element X'belong? A)...
SOSSSSSS IM PRETTY SURE THEYRE WRONG AYUDA a. Write the symbol of the element with the...
SOSSSSSS IM PRETTY SURE THEYRE
WRONG AYUDA
a. Write the symbol of the element with the largest atomic radius in Group 7A. b. Write the symbol of the element with the largest atomic radius in period 4. c. Write the symbol of the element with the largest first ionization energy in Group 2A. Be d. Write the symbol of the element in period 2 that has p electrons, but no unpaired p electrons e. Write the symbol of the element...
please help
Prep Work #9 CHM 1210-03 Use the following clues to fill in the periodic table provided below. Use the letnernje but are no the actual element symbol. The following groups of elements have similar properties but are not necessarily listed in the correct order AFKZ, DIU, HOP, CLVY, BJX, EMS, GOW,NRT .P has 3 energy levels as do A and G C has the greatest mass number on the table . N is a metalloid with 5 valence...
PERIODIC TABLE REVIEW WORKSHEET 1. Match the man with his contribution to (A) Lothar Meyer with his contribution to the Periodic Table: Doberiner (A) groups of 3.elements, called triads (C) Dmitri Mendelevey (8) graphed atomic weight Vs atomic volune.meyer nendeleyev (c) properties repost every oth element-Newlanas (C) proper (E) Henry Moseley (D) used X-rays to define "atomic numbers'-moseley (E) "periodic law" based on atomic weights-menckeleen 2. Identify an A periodic tables (A) period (D) transition metal (G) inert gas (Group...
Chemistry CHE 140, 170, 180 о Goal: With reference only to the periodic table, to write the electron configuration of the ground state (lowest energy), gaseous, atoms. Tools: (1) A list of the electronic sublevels within the atom in order of their increasing energy. (Write the list, 1s 2s 2p <6s, in the boxes below as indicated, by inspection of the "Aufbau" diagram or of the periodic table, where the order is explicit) (ii) Fill in the box below each...
Report: Periodic Properties Valence Electrons +Electron Configurations 1. Give the condensed electron configuration for the following elements. Rb d. I a. b. С e. Ca c. Si f. Pb Give the number of valence electrons for each element. 2. d. Br a. Al b. Rb c. Ar 3. Across a period of the periodic table (left to right), valence electrons... Circle the correct choice: (increase / remain the same / decrease) Down a family of the periodic table (top to...
20. An atom of which of the following elements has the smallest ionization energy? A. CI C. Si B. P DS 21. An atom of which of the following elements has the largest second ionization energy? A. Cs С Ро B. Pb D. Ba Q89. 22. Which of the following forms the most stable anion in the gas phase? A. CI (electron affinity -349 kJ/mol) B. S (electron affinity = -200 kJ/mol) CO (electron affinity = -141 kJ/mol) D. C(electron...
Using the attached sheet, find where each element is located
on this new periodic table.
Period-> Moun is 16 HS hydrogen He 4.C02802 boron riges oxyge fuoring 1.00794 thlum beryllium F 18.0904 10 Ne 20.1797 12.0107 | 140057415994 Li Be 9012112 magnesium 18 6941 sodium 11 AI Р 30.97375 26.981536 Na Mg 22.99977 243050 potassium CI Ar 35.453 39.984 krypton 36 Kr 73.904 103.799 Ga edicium 20 Ca Ge As Se 7264 K 39.098340.078 LJ mo their proper position on...
Which list incudes elements with the most similar chemical properties? B) Cr, Pb, Xe 37) D) N, O, F O,S, Se C) As the elements in Period 3 are considered in order of increasing atomic number, there is a general decrease in C) atomic mass D) atomic radius A) first ionization energy B) electronegativity Element K reacts with chlorine to form an ionic compound that has the formula XCl,. To which group on the Periodic Table coul element X'belong? A)...
SOSSSSSS IM PRETTY SURE THEYRE
WRONG AYUDA
a. Write the symbol of the element with the largest atomic radius in Group 7A. b. Write the symbol of the element with the largest atomic radius in period 4. c. Write the symbol of the element with the largest first ionization energy in Group 2A. Be d. Write the symbol of the element in period 2 that has p electrons, but no unpaired p electrons e. Write the symbol of the element...
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