Period 3 elements in the periodic table include the eight chemical elements from atomic number 11 to 18: sodium (Na), magnesium (Mg), aluminium (Al), silicon (Si), phosphorus (P), sulfur (S), chlorine (Cl), and argon (Ar). These elements are in the third row of the periodic table.
| group | ⇨ | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| period | ⇩ | ||||||||||||||||||
| 1 | 1 H  Hydrogen |
2 He  Helium |
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| 2 | 3 Li  Lithium |
4 Be  Beryllium |
5 B  Boron |
6 C  Carbon |
7 N  Nitrogen |
8 O  Oxygen |
9 F  Fluorine |
10 Ne  Neon |
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| 3 | 11 Na  Sodium |
12 Mg  Magnesium |
13 Al  Aluminium |
14 Si  Silicon |
15 P  Phosphorus |
16 S  Sulfur |
17 Cl  Chlorine |
18 Ar  Argon |
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| 4 | 19 K  Potassium |
20 Ca  Calcium |
21 Sc  Scandium |
22 Ti  Titanium |
23 V  Vanadium |
24 Cr  Chromium |
25 Mn  Manganese |
26 Fe  Iron |
27 Co  Cobalt |
28 Ni  Nickel |
29 Cu  Copper |
30 Zn  Zinc |
31 Ga  Gallium |
32 Ge  Germanium |
33 As  Arsenic |
34 Se  Selenium |
35 Br  Bromine |
36 Kr  Krypton |
|
| 5 | 37 Rb  Rubidium |
38 Sr  Strontium |
39 Y  Yttrium |
40 Zr  Zirconium |
41 Nb  Niobium |
42 Mo  Molybdenum |
43 Tc  Technetium |
44 Ru  Ruthenium |
45 Rh  Rhodium |
46 Pd  Palladium |
47 Ag  Silver |
48 Cd  Cadmium |
49 In  Indium |
50 Sn  Tin |
51 Sb  Antimony |
52 Te  Tellurium |
53 I  Iodine |
54 Xe  Xenon |
|
| 6 | 55 Cs  Caesium |
56 Ba  Barium |
72 Hf  Hafnium |
73 Ta  Tantalum |
74 W  Tungsten |
75 Re  Rhenium |
76 Os  Osmium |
77 Ir  Iridium |
78 Pt  Platinum |
79 Au  Gold |
80 Hg  Mercury |
81 Tl  Thallium |
82 Pb  Lead |
83 Bi  Bismuth |
84 Po  Polonium |
85 At  Astatine |
86 Rn  Radon |
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| 7 | 87 Fr  Francium |
88 Ra  Radium |
104 Rf  Rutherfordium |
105 Db  Dubnium |
106 Sg  Seaborgium |
107 Bh  Bohrium |
108 Hs  Hassium |
109 Mt  Meitnerium |
110 Ds  Darmstadtium |
111 Rg  Roentgenium |
112 Cn  Copernicium |
113 Nh  Nihonium |
114 Fl  Flerovium |
115 Mc  Moscovium |
116 Lv  Livermorium |
117 Ts  Tennessine |
118 Og  Oganesson |
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| 57 La  Lanthanum |
58 Ce  Cerium |
59 Pr  Praseodymium |
60 Nd  Neodymium |
61 Pm  Promethium |
62 Sm  Samarium |
63 Eu  Europium |
64 Gd  Gadolinium |
65 Tb  Terbium |
66 Dy  Dysprosium |
67 Ho  Holmium |
68 Er  Erbium |
69 Tm  Thulium |
70 Yb  Ytterbium |
71 Lu  Lutetium |
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| 89 Ac  Actinium |
90 Th  Thorium |
91 Pa  Protactinium |
92 U  Uranium |
93 Np  Neptunium |
94 Pu  Plutonium |
95 Am  Americium |
96 Cm  Curium |
97 Bk  Berkelium |
98 Cf  Californium |
99 Es  Einsteinium |
100 Fm  Fermium |
101 Md  Mendelevium |
102 No  Nobelium |
103 Lr  Lawrencium |
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| 3 | – period 3 element |
FAQs on Period 3 Element
| ‣ Which element of period 3 has valency 4? The silicon element in period 3 of the periodic table has valency 4. |
| ‣ Where is period 3 on the periodic table? Period 3 is in the third row of the periodic table. |
| ‣ Which element in period 3 is the most active nonmetal? The chlorine element in period 3 of the periodic table is the most active nonmetal. |
| ‣ Which of the period 3 elements has the highest melting point? The silicon element in period 3 of the periodic table has the highest melting point. |
| ‣ Which is the least reactive element in period 3? The argon element in period 3 of the periodic table is the least reactive. |
| ‣ Which element in period 3 is the most electronegative? The chlorine element in period 3 of the periodic table is the most electronegative. |
| ‣ What is the atomic number of elements in period 3? The atomic numbers of the elements in period 3 are from 11 to 18. |
| ‣ Which element in period 3 has the highest second ionization energy? The sodium element in period 3 of the periodic table has the highest second ionization energy. |
| ‣ Which element in period 3 does not form oxide? The argon element in period 3 of the periodic table does not form oxide. |
| ‣ Which period 3 element has the lightest melting point? The argon element in period 3 of the periodic table has the lightest melting point. |
| ‣ Which period 3 element has the least tendency to attract electrons? The sodium element in period 3 of the periodic table has the least tendency to attract electrons. |
| ‣ Which period 3 element has the highest first ionization energy? The argon element in period 3 of the periodic table has the highest first ionization energy. |
| ‣ What element is in group 2 period 3? The magnesium element is in group 2 and period 3 of the periodic table. |
| ‣ What element is found in group 16 and period 3? The sulfur element is in group 16 and period 3 of the periodic table. |
| ‣ What element is in group 1 period 3? The sodium element is in group 1 and period 3 of the periodic table. |
| ‣ What is a main group element in period 3? All elements in period 3 of the periodic table are main group elements. |
| ‣ What is the most metallic element in period 3? The sodium element in period 3 of the periodic table is the most metallic. |
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Related:
Also Read:
- Period 1 Element
- Period 2 Element
- Period 4 Element
- Period 5 Element
- Period 6 Element
- Period 7 Element
External Links:
- https://en.wikipedia.org/wiki/Period_3_element
- https://www.studysmarter.us/explanations/chemistry/inorganic-chemistry/period-3-elements/
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Supplemental_Modules_and_Websites_(Inorganic_Chemistry)/Descriptive_Chemistry/Elements_Organized_by_Period/Period_3_Elements
