Concept explainers
(a)
Interpretation:
True and false
Elements in the same column of the periodic table have the same-outer shell electron configuration.
Concept Introduction:
The periodic table of an element is the chemical element’s tabular arrangement structured according to their electronic configuration, chemical properties and
(b)
Interpretation:
True and false
All group 1A elements have one electron in their valence shell.
Concept Introduction:
The periodic table of an element is the chemical element’s tabular arrangement structured according to their electronic configuration, chemical properties and atomic number. Usually in one period or row towards the left elements are metal and non-metal towards the right having the elements with same chemical properties are kept in the same column. Table column are known as groups and table rows are known as periods.
(c)
Interpretation:
True and false
All group 6A elements have eight electrons in their valence shell.
Concept Introduction:
The periodic table of an element is the chemical element’s tabular arrangement structured according to their electronic configuration, chemical properties and atomic number. Usually in one period or row towards the left elements are metal and non-metal towards the right having the elements with same chemical properties are kept in the same column. Table column are known as groups and table rows are known as periods.
(d)
Interpretation:
True and false
All group 8A elements have eight electrons in their valence shell.
Concept Introduction:
The periodic table of an element is the chemical element’s tabular arrangement structured according to their electronic configuration, chemical properties and atomic number. Usually in one period or row towards the left elements are metal and non-metal towards the right having the elements with same chemical properties are kept in the same column. Table column are known as groups and table rows are known as periods.
(e)
Interpretation:
True and false
In the periodic table, Period 1 has one element, Period 2 has two elements, Period 3 has three elements and so forth.
Concept Introduction:
The periodic table of an element is the chemical element’s tabular arrangement structured according to their electronic configuration, chemical properties and atomic number. Usually in one period or row towards the left elements are metal and non-metal towards the right having the elements with same chemical properties are kept in the same column. Table column are known as groups and table rows are known as periods.
(f)
Interpretation:
True and false
Period 2 results from filling the 2s an 2p orbitals and therefore, there are eight elements in period 2.
Concept Introduction:
The periodic table of an element is the chemical element’s tabular arrangement structured according to their electronic configuration, chemical properties and atomic number. Usually in one period or row towards the left elements are metal and non-metal towards the right having the elements with same chemical properties are kept in the same column. Table column are known as groups and table rows are known as periods.
(g)
Interpretation:
True and false
Period 3 results from filling the 3s, 3p and 3d orbitals, and therefore, there are nine elements in Period 3.
Concept Introduction:
The periodic table of an element is the chemical element’s tabular arrangement structured according to their electronic configuration, chemical properties and atomic number. Usually in one period or row towards the left elements are metal and non-metal towards the right having the elements with same chemical properties are kept in the same column. Table column are known as groups and table rows are known as periods.
(h)
Interpretation:
True and false
The main group elements are s block and p block elements.
Concept Introduction:
The periodic table of an element is the chemical element’s tabular arrangement structured according to their electronic configuration, chemical properties and atomic number. Usually in one period or row towards the left elements are metal and non-metal towards the right having the elements with same chemical properties are kept in the same column. Table column are known as groups and table rows are known as periods.
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Chapter 2 Solutions
OWLv2 for Bettelheim/Brown/Campbell/Farrell/Torres' Introduction to General, Organic and Biochemistry, 11th Edition, [Instant Access], 1 term (6 months)
- 2-59 You are presented with a Lewis dot structure of element X as X.. To which two groups in the Periodic Table might this element belong?arrow_forward2-43 Which group(s) of the Periodic Table contain(s): (a) Only metals? (b) Only metalloids? (c) Only nonmetals?arrow_forward2-69 (Chemical Connections 2A) Why does the body need sulfur, calcium, and iron?arrow_forward
- 2-73 (Chemical Connections 2D) Copper is a soft metal. how can it be made harder?arrow_forward2-47 Which element in each pair is more metallic? (a) Silicon or aluminum (b) Arsenic or phosphorus (c) Gallium or germanium (d) Gallium or aluminumarrow_forward2-67 Account for the fact that the first ionization energy of oxygen is less than that of nitrogen.arrow_forward
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- (d) the ion with 74 electrons, 116 neutrons, and a +3 chargearrow_forwardAnswer true or false. (a) Mendeleyev discovered that when elements are arranged in order of increasing atomic weight, certain sets of properties recur periodically.(b) Main-group elements are those in the columns 3A to 8A of the Periodic Table.(c) Nonmet.als are found at the top of the Periodic Table, metalloids in the middle, and metals at the bottom.(d) Among the US known elements,there are approximately equal numbers of metals and non metals.(e) A horizontal row in the Periodic Table is called a group.(f) The Group LA elements are called the "alkali metals"(g) The alkali metals react with water to give hydrogen gas and a metalhydroxide, MOH, where "M' is the metal."(h) The halogens are Group 7A elements.(i) The boiling points of noble gases (Group SA elements) increase goingfrom top to bottom of the column.arrow_forward66. Which element do you expect to be most like magnesium? Why?(a) potassium(b) silver(c) bromine(d) calcium(e) leadarrow_forward
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