Chemistry, 23.10.2019 07:00, jahnoibenjamin

On the periodic table, the elements known as noble gases are all found in period 2. period 6. group 15. group 18.

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Chemistry, 14.07.2019 17:20, JebKush3161

On the periodic table, which group contains the noble gases? the left-hand side of the table begins with group 1 element. group 1 elements begin with hydrogen. group 2 elements begin with beryllium. group 3 through group 12 are in the center of the table. the top row of these element groups include the elements scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, cooper, and zinc. on the right side of the periodic table are found groups 13 through 18. group 13 begins with boron. group 14 beings with carbon. group 15 begins with nitrogen. group 16 beings with oxygen. group 17 begins with fluorine. group 18 begins with helium. the last group a. the second group b. the fourth group c. the first group d.

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Chemistry, 16.07.2019 09:30, stussy44

On the periodic table, the elements known as noble gases are all found in period 2. period 6. group 15. group 18.

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Physics, 20.08.2019 11:30, Imagine2013

1. who first published the classification of the elements that is the basis of our periodic table today? 2. by what property did mendeleev arrange the elements? 3. by what property did moseley suggest that the periodic table be arranged? 4. “the properties of the elements repeat periodically” defines the 5. what is a period and how many are there in the periodic table? 6. what is a group (also called a family)? how many are there in the periodic table? 7. state the number of valence electrons in the following: element valence electrons magnesium phosphorous fluorine neon 8. give the names and chemical symbols for the following: atomic number element name chemical symbol 13 92 5 25 9. list, by number, both the period and group of each of these elements. element symbol period group beryllium be iron fe lead pb 10. which of the following pairs of elements belong to the same period? highlight a. na and cl b. na and li c. na and cu d. na and ne 11. which of the following pairs of elements belong to the same group? highlight a. h and he b. li and be c. c and pb d. ga and ge 12. what group numbers are the transitions elements? 13. what are the group 1/ia elements called? 14. what are the group 2/iia elements called? 15. what are the group 17/viia elements called? 16. what are the group 18/viiia elements called? 17. which alkali metal belongs to the sixth period? 18. which halogen belongs to the fourth period? 19. what element is in the fifth period and the eleventh group? 20. what is the heaviest noble gas? 21. what is the heaviest alkaline earth metal? 22. would you expect strontium to be, chemically, more similar to calcium or rubidium and why? 23. list the three lightest noble gases. 24. list all of the alkali metals

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Chemistry, 24.10.2019 21:43, Arinola

What are inner transition metals composed of? noble gases halogens lanthanides and actinides metals what are the elements in group 1a on the periodic table called? alkaline earth metals halogens alkali metals inner transition metals how is the modern periodic table arranged? by increasing ionic size by increasing atomic number by increasing electronegativity by increase in atomic mass where are the noble gases located on the periodic table? in group 8a (far right-hand side) in the middle below the main body of the periodic table in group 1a (far left-hand side) which set of elements is in the order of decreasing conductivity? ge, o, mn o, ge, mn mn, o, ge mn, ge, o tellurium is a metalloid. how many valence electrons does tellurium have? 3 4 5 6 which element is a metalloid? tellurium calcium sodium argon which set of elements is in the order of increasing malleability? se, sb, sn sn, sb, se sb, sn, se se, sn, sb which element is a transuranium element? erbium lanthanum holmium californium which group contains mostly radioactive elements? inner transition metals alkali metals noble gases alkaline earth metals what type of element is chlorine? alkaline earth metal halogen inner transition metal metal which classification is the most specific for the element europium? actinide-series element lanthanide-series element transition metal inner transition metal which substance tends to form anions when bonding with other elements? sodium argon oxygen calcium which example is a brittle solid? bromine chlorine sulfur neon which element belongs to the p6-block of the periodic table? alkali metals halogens noble gases alkaline earth metals which group of elements belongs to the f-block ? metalloids metals nonmetals inner transition metals how many valence electrons are found in gallium? 3 5 7 8 helium (he) has two valence electrons, and these electrons are located in the 1s subshell. without using the periodic table, in which group and period is helium located? group 3a, period 3 group 6a, period 3 group 8a, period 1 group 3b, period 6 which group has two valence electrons? alkali metals alkaline earth metals noble gases halogens

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