Electrical Materials: Atoms and Atomic Structure Quiz

Atoms consist of a small nucleus composed of protons and neutrons, surrounded by moving electrons. Atoms are electrically neutral, with the number of positively charged protons being equal to the number of negatively charged electrons. The atomic number (Z) represents the number of electrons or protons in the atom, ranging from 1 for hydrogen to 92 for uranium. The atomic mass (A) is the sum of the masses of protons and neutrons within the nucleus.

The atomic number (Z) refers to the number of electrons or protons in the atom, while the atomic mass (A) is the sum of the masses of protons and neutrons within the nucleus.

Quantum numbers describe the distribution of electrons in an atom, including their energy levels, shapes of orbitals, orientation in space, and spin. They provide important information about the behavior and arrangement of electrons within an atom.

<p>The nucleus of an atom is composed of protons and neutrons. The protons carry a positive charge, while the neutrons are electrically neutral. The number of positively charged protons is balanced by the number of negatively charged electrons orbiting the nucleus, resulting in the overall electric neutrality of the atom.</p> Signup and view all the answers