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Atom Structure Basics

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Questions and Answers

What is the charge of a proton?

Explain the difference between atomic number and mass number.

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.

How do you calculate the number of neutrons in an atom?

Mass Number - Atomic Number

What are isotopes?

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

Why do isotopes of the same element have similar chemical properties?

Because they have the same number of protons and electrons. Signup and view all the answers

How do isotopes differ from each other?

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

What determines an element's position in the periodic table?

Electron arrangement and configuration Signup and view all the answers

How are isotopes of an element named?

By the element's name followed by the mass number Signup and view all the answers

Describe the electron configuration of chlorine.

2, 8, 7 Signup and view all the answers

What are the characteristics of metals?

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

What are the characteristics of non-metals?

Poor conductors of heat and electricity, lackluster, often brittle Signup and view all the answers

What are the chemical reactivities of Halogens (Group 7) and Noble Gases (Group 8)?

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