Match the element below's symbol and atomic mass with the correct description. Enter only the letter...
Match the element below's symbol and atomic mass with the correct description. Enter only the letter of the correct choice. a. the heaviest alkaline earth metal b. the lightest metalloid in Group 5A(15) c. the coinage metal in Group 1B(11) whose atoms have the fewest electrons d. the halogen in Period 4
Homework Answers
a. the heaviest alkaline earth metal b. the lightest metalloid in Group 5A(15) c. the coinage metal in Group 1B(11) whose atoms have the fewest electrons d. the halogen in Period 4
a) The alkaline earth metals are six chemical elements in column (group) 2 of the Periodic table. They are beryllium (Be), magnesium(Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). Their Atomic weight are 9, 24, 40, 87, 137 and 226 respectively
So the heaviest alkaline Earth metal is Radium.
b) Group 5a/ (15) of the periodic table is the nitrogen family and includes the following compounds:
nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi).
A metalloid is a chemical element with properties in between, those of metals and nonmetals.
Arsenic and Antimony are metalloids and Arsenic is the lightest metalloid.
c) the coinage metal in Group 1B(11) whose atoms have the fewest electrons
Group 1B /(11) element are copper (Cu), silver (Ag), and gold (Au). Their atomic number representing the number of protons and electrons are 29, 47 and 79 respectively. So the atom which has the fewest electrons will be Copper.
d) the halogen in Period 4
A period 4 element is the elements in the fourth row (or period) of the periodic table of the elements.
The halogen in this row belonging to group 17 is Bromine.
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Match the element below's symbol and atomic mass with the
correct description. Enter only the letter...
an element in the nitrogen family with a lower atomic number than tellurium enter timical symbol...
an element in the nitrogen family with a lower atomic number
than tellurium
enter timical symbol of an element that matches. Otherwise check No in the second c Does any element match the If you checked yes, give the symbol of an element that matches. description description? An element in Period 6 and Group 8A.O Yes No A semimetal in Group 5A. O YesO No An alkaline earth metal with a lower atomic number than phosphorus 参Yes No A main-group...
Read each description in the first column of the table below. If any chemical element with...
Read each description in the first column of the table below. If any chemical element with atomic number of 92 or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise check No in the second column. description Does any element match the description? If you checked yes, give the symbol of an element that matches. An element in Period 2 and Group 8A Yes No A metalloid in Group 4A Yes No...
Give the symbol of the element an alkaline earth metal in period 4 group 5A (15),...
Give the symbol of the element an alkaline earth metal in period 4 group 5A (15), period 3 a noble gas in period 3 a halogen in period 3 group 4A (14), period 2
Read each description in the first column of the table below. If any chemical element with...
Read each description in the first column of the table below. If any chemical element with atomic number of 92 or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise check No in the second column. description Does any element match the description? If you checked yes, give the symbol of an element that matches. An element in Period 4 and Group 1A Yes A nonmetal in Group 7A. An alkaline earth...
Read each description in the first column of the table below. If any chemical element with...
Read each description in the first column of the table below. If any chemical element with atomic number of 92 or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise check No in the second column. description Does any element match the description? If you checked yes, give the symbol of an element that matches. An element in Period 1 and Group 3A. Yes No A semimetal in Group SA. Yes No...
Read each description in the first column of the table below. If any chemical element with...
Read each description in the first column of the table below.
If any chemical element with atomic number of 92 or less matches
the description, check yes and enter the chemical symbol for an
element that matches. Otherwise check No in the second
column.
Read each description in the first column of the table below. If any chemical element with enter the chemical symbol of an element that matches. Otherwise check No in the secon description Does any element match...
On the Periodic Table, what chemical symbol matches each description? 1. the alkaline earth metal in...
On the Periodic Table, what chemical symbol matches each description? 1. the alkaline earth metal in the second row 2. the halogen in the fourth row 3. the lanthanide whose name begins with the letter “N”
1. (2 pts) Given the name or symbol for an element and its mass#, Fill in...
1. (2 pts) Given the name or symbol for an element and its mass#, Fill in the table: Element # protons # neutrons # electrons 87Rb+ 128Te-2 2. (3 pts) Write the correct symbol and charge for the following: An atom with 47 protons, mass number 107, and 46 electrons. An atom with 2 more electrons than protons, mass number 80, and 46 neutrons. Write the atomic symbol for the element whose ion has a 2- charge, has 20 more...
Da not change the number of neutrons or mass numbers that are given to you in this document. Thes...
Da not change the number of neutrons or mass numbers that are given to you in this document. These numbers are to be used to determine either the number of neutrons or the mass number Atoms and Elements Lab Activitys Complete the following chart Name of Hydrogen Boron Titanium Barium lodine Sulfurin Symbol of Group Transition ls the element a metal, metalloid? of Name of Group (if Period Number of protons Atomic Number of shells of electrons of valence Number1...
References a. Write the symbol of the element with the largest atomic radius in Group IA...
References a. Write the symbol of the element with the largest atomic radius in Group IA Fr b. Write the symbol of the element with the largest atomie radius in period 2 Li e. 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 5 that has Pelectrons, but no unpaired p electrons. Xe e. Write the symbol of the element with the abbreviated electron...
an element in the nitrogen family with a lower atomic number
than tellurium
enter timical symbol of an element that matches. Otherwise check No in the second c Does any element match the If you checked yes, give the symbol of an element that matches. description description? An element in Period 6 and Group 8A.O Yes No A semimetal in Group 5A. O YesO No An alkaline earth metal with a lower atomic number than phosphorus 参Yes No A main-group...
Read each description in the first column of the table below. If any chemical element with atomic number of 92 or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise check No in the second column. description Does any element match the description? If you checked yes, give the symbol of an element that matches. An element in Period 2 and Group 8A Yes No A metalloid in Group 4A Yes No...
Read each description in the first column of the table below. If any chemical element with atomic number of 92 or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise check No in the second column. description Does any element match the description? If you checked yes, give the symbol of an element that matches. An element in Period 4 and Group 1A Yes A nonmetal in Group 7A. An alkaline earth...
Read each description in the first column of the table below. If any chemical element with atomic number of 92 or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise check No in the second column. description Does any element match the description? If you checked yes, give the symbol of an element that matches. An element in Period 1 and Group 3A. Yes No A semimetal in Group SA. Yes No...
Read each description in the first column of the table below.
If any chemical element with atomic number of 92 or less matches
the description, check yes and enter the chemical symbol for an
element that matches. Otherwise check No in the second
column.
Read each description in the first column of the table below. If any chemical element with enter the chemical symbol of an element that matches. Otherwise check No in the secon description Does any element match...
Da not change the number of neutrons or mass numbers that are given to you in this document. These numbers are to be used to determine either the number of neutrons or the mass number Atoms and Elements Lab Activitys Complete the following chart Name of Hydrogen Boron Titanium Barium lodine Sulfurin Symbol of Group Transition ls the element a metal, metalloid? of Name of Group (if Period Number of protons Atomic Number of shells of electrons of valence Number1...
References a. Write the symbol of the element with the largest atomic radius in Group IA Fr b. Write the symbol of the element with the largest atomie radius in period 2 Li e. 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 5 that has Pelectrons, but no unpaired p electrons. Xe e. Write the symbol of the element with the abbreviated electron...
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