Atom Structure Basics

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Atomic Number (Z) is the number of protons, defining the element, while Mass Number (A) is the sum of protons and neutrons, determining the atom's mass.

Mass Number - Atomic Number

<p>Atoms of the same element with the same number of protons but different numbers of neutrons.</p> Signup and view all the answers

<p>Because they have the same number of protons and electrons.</p> Signup and view all the answers

<p>They have different numbers of neutrons, leading to different masses and physical properties.</p> Signup and view all the answers

<p>Electron arrangement and configuration</p> Signup and view all the answers

<p>By the element's name followed by the mass number</p> Signup and view all the answers

<p>2, 8, 7</p> Signup and view all the answers

<p>Good conductors of heat and electricity, high luster, malleable, ductile</p> Signup and view all the answers

<p>Poor conductors of heat and electricity, lackluster, often brittle</p> Signup and view all the answers

<p>Halogens tend to gain one electron, Noble Gases are generally chemically inert</p> Signup and view all the answers