Web1 apr. 2016 · Alkali Metals. Less dense than other metals. One loosely bound valence electron. Highly reactive, with reactivity increasing moving down the group. The largest atomic radius of elements in their period. … Web16 apr. 2014 · These elements include Nitrogen (N), Phosphorus (P), Arsenic (As), Antimony (Sb) and Bismuth (Bi). Looking at the fourth energy level or period (row) of the periodic table we will find that the element …
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Web4 jan. 2024 · Jan 4, 2024 The atom would be in Period 4 and Group 17. Explanation: The valence shell configuration is 4s24p5. The principal quantum number (4) gives you the Period number. Start with H in Period 1 and count down to the fourth row ( Period 4 ). That brings you to K. (Adapted from Chemistry - About.com) WebElements in the same group of the periodic table have similar chemical properties. Elements can be classified as metals, metalloids, and nonmetals, or as a main-group elements, transition metals, and inner transition metals. Groups are numbered 1–18 from left to right. The elements in group 1 are known as the alkali metals; those in group 2 ... city of calhoun ga property taxes
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Web10 jan. 2024 · Group 4 is the second group of transition metals in the periodic table. It contains the four elements titanium (Ti), zirconium (Zr), hafnium (Hf), and … Web28 apr. 2024 · Oxygen is found in Period 2, Group 16. Apply the rule of the periodic table to your element. The rule is as follows: If an element is not a transition metal, then valence electrons increase in number as you count groups left to right, along a period. Each new period begins with one valence electron. Exclude groups 3 through 12. Web4 jan. 2024 · The main group elements (also known as the representative elements) in the periodic table are the chemical elements of s-block and p-block (except hydrogen ). These elements include group 1 ( alkali metals ), group 2 ( alkaline earth metals ), group 13 ( boron group ), group 14 ( carbon group ), group 15 ( nitrogen group ), group 16 ( oxygen ... donating to st. judes