(a)
Interpretation:
The group number of alkali metals in periodic table is to be identified.
Concept introduction:
The elements in a modern periodic table are arranged in the increasing order of their
(b)
Interpretation:
The group number of alkaline earth metals in periodic table is to be identified.
Concept introduction:
The elements in a modern periodic table are arranged in the increasing order of their atomic numbers. In the modern periodic table, the horizontal rows are known as periods, whereas vertical columns are known as groups. There are
(c)
Interpretation:
The group number of halogens in periodic table is to be identified.
Concept introduction:
The elements in a modern periodic table are arranged in an increasing order of their atomic number. In the modern periodic table, the horizontal rows are known as periods, whereas vertical columns are known as groups. There are
(d)
Interpretation:
The group number of noble gases in periodic table is to be identified.
Concept introduction:
The elements in a modern periodic table are arranged in an increasing order of their atomic number. In the modern periodic table, the horizontal rows are known as periods, whereas vertical columns are known as groups. There are
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Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
- 2.42 What is a period in the periodic table? From what does it derive its name?arrow_forwardUsing the periodic table, classify each of the following elements as a metal or a nonmetal, and then further classify each as a main-group (representative) element, transition metal, or inner transition metal:(a) cobalt(b) europium(c) iodine(d) indium(e) lithium(f) oxygen(h) cadmium(i) terbium(j) rheniumarrow_forwardState the number of neutrons in an atom of each of the following isotopes. (a) hydrogen-1 (b) carbon-13 (c) cobalt-59 (d) iodine-127arrow_forward
- Give the group name for each of the following elements:(a) krypton(b) selenium(c) barium(d) lithiumarrow_forwardGive the ground-state electron configuration for each of the following elements. (a) Nitrogen (b) Heliumarrow_forwardWhich atomic particles are electrically charged?(a) electrons and neutrons(b) neutrons and protons(c) electrons and protons(d) electrons, neutrons and protonsarrow_forward
- For each of the following atoms and charged ions, clearly state the correct number of protons, neutrons, and electrons. (a) Fluorine with a charge of -1 and a mass number of 18: protons, neutrons, electrons (b) Uncharged iodine (element symbol "I") with a mass number of 125: protons, neutrons, electronsarrow_forwardWhich of the listed elements is most metallic?(a) Al (b) N (c) P (d) Oarrow_forwardUsing the periodic table, classify each of the following elements as a metal or a nonmetal, and then further classify each as a main-group (representative) element, transition metal, or inner transition metal:(a) uranium(b) bromine(c) strontium(d) neon(e) gold(f) americium(g) rhodium(h) sulfur(i) carbon(j) potassiumarrow_forward
- Write a symbol for each of the following neutral isotopes. Include the atomic number and mass number for each.(a) the alkali metal with 11 protons and a mass number of 23(b) the noble gas element with 75 neutrons in its nucleus and 54 electrons in the neutral atom(c) the isotope with 33 protons and 40 neutrons in its nucleus(d) the alkaline earth metal with 88 electrons and 138 neutronsarrow_forwardUsing the periodic table, identify the heaviest member of each of the following groups:(a) alkali metals(b) chalcogens(c) noble gases(d) alkaline earth metalsarrow_forwardTo what group number does each element belong?(a) germanium(b) nitrogen(c) sulfur(d) carbon(e) boronarrow_forward
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