Atomic Structure Essentials

<p>Proton = Nucleus Electron = Outside the nucleus in energy levels Neutron = Nucleus Positron = Outside the nucleus in energy levels</p> Signup and view all the answers

<p>Plum pudding model = J.J. Thomson Planetary model = Ernest Rutherford Bohr model = Niels Bohr Quantum mechanical model = Erwin Schrödinger</p> Signup and view all the answers

<p>First energy level (n=1) = 2 electrons Second energy level (n=2) = 8 electrons Third energy level (n=3) = 18 electrons Fourth energy level (n=4) = 32 electrons</p> Signup and view all the answers

<p>The structure of an atom consists of a central nucleus composed of protons and neutrons, surrounded by a cloud of electrons. Protons and neutrons are located in the nucleus, while electrons are found in various energy levels or orbitals surrounding the nucleus.</p> Signup and view all the answers

<p>Subatomic particles, particularly the number of protons and electrons, determine the chemical properties of an element. The number of protons defines the element's atomic number and identity, while the arrangement of electrons in the energy levels affects its reactivity and bonding behavior.</p> Signup and view all the answers

<p>Energy levels, or electron shells, in an atom represent the regions where electrons are most likely to be found. The arrangement of electrons in these levels follows specific patterns, with each level having a maximum capacity of electrons. The energy levels play a crucial role in determining the chemical behavior and stability of an atom.</p> Signup and view all the answers