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
Homework Answers
The symbol of an alkaline earth metal in period 4 is: Ca
Explanation: Alkaline earth metals means 2nd group elements.
The symbol of the element in group 5A (15), period 3 is: P
Explanation: Group 5A is called nitrogen family
The symbol of a noble gas in period 3 is: Ar
Explanation: Noble gases are inert gas elements present in group 8
The symbol of a halogen in period 3 is: Cl
The symbol of the element in group 4A (14), period 2 is: C
Add Answer to:
Give the symbol of the element
an alkaline earth metal in period 4
group 5A (15),...
an alkaline earth metal in period 2 Express your answer as a chemical symbol. group 5A...
an alkaline earth metal in period 2 Express your answer as a chemical symbol. group 5A (15), period 3 Express your answer as a chemical symbol. a noble gas in period 3 Express your answer as a chemical symbol. a halogen in period 3 Express your answer as a chemical symbol. group 4A (14), period 4 Express your answer as a chemical symbol.
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
15. Complete the table below. (8 marks) Element Atomie Group Element name Family Period Metal or...
15. Complete the table below. (8 marks) Element Atomie Group Element name Family Period Metal or symbol number number name number nonmetal fluorine Ba noble gas 3
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...
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”
8. How does the number of valence electrons determine whether an element is considered to be...
8. How does the number of valence electrons determine whether an element is considered to be an alkali metal, an alkaline earth, a halogen or a noble gas? Be specific.
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...
3. Selected symbols have been placed into the blank Periodic Table of the Elements, above. Match...
3. Selected symbols have been placed into the blank Periodic Table of the Elements, above. Match the symbol to the following descriptions. Use an element symbol only once. a) a halogen b) a semimetal c) an element in the lanthanide d) an element with atomic number 13 e) an alkali element f) a nonmetal left of the semimetals in the periodic table g) an element in the actinide series h) a representative non-metal in the fourth period i) a noble...
1. An element belongs to Group 9. What common name might be used to describe the...
1. An element belongs to Group 9. What common name might be used to describe the group to which the element belongs? a) alkaline earth b) semimetal c) nonmetal d) transition metal e) noble gas 2. Which of the following elements is most likely to react with oxygen? a) aluminium b) argon c) magnesium d) nitrogen e) silicon 3. Which element X is most likely to react to form the compound XF5? a) carbon b) antimony c) chlorine d) calcium...
A 1.005 g sample of an unknown alkaline-earth metal was allowed to react with a volume...
A 1.005 g sample of an unknown alkaline-earth metal was allowed to react with a volume of chlorine gas that contains 1.91 × 1022 Cl2 molecules. The resulting metal chloride was analyzed for chlorine by dissolving a 0.436 g sample in water and adding an excess of AgNO3(aq) to give a precipitate of 1.126 g of solid AgCl. What is the percent Cl in the alkaline-earth chloride? What is the identity of the alkaline-earth metal? Write balanced equations for all...
15. Complete the table below. (8 marks) Element Atomie Group Element name Family Period Metal or symbol number number name number nonmetal fluorine Ba noble gas 3
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...
8. How does the number of valence electrons determine whether an element is considered to be an alkali metal, an alkaline earth, a halogen or a noble gas? Be specific.
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...
3. Selected symbols have been placed into the blank Periodic Table of the Elements, above. Match the symbol to the following descriptions. Use an element symbol only once. a) a halogen b) a semimetal c) an element in the lanthanide d) an element with atomic number 13 e) an alkali element f) a nonmetal left of the semimetals in the periodic table g) an element in the actinide series h) a representative non-metal in the fourth period i) a noble...
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