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An element’s properties depend on the structure of its atoms ((Atoms have…
An element’s properties depend on the structure of its atoms
That orbital represents the space in which the electron is found.
Electrons occupy separate orbitals within the valence shell until forced to share orbitals.
The first shell has room for a single spherical 1s orbital for its pair of electrons in the second shell can be packed pairs of electrons into spiritual 2's orbital and three dumbbell shaped 2p orbitals.
Atom is the smallest unit of matter that still retains the properties of an element.
Atoms are composed of even smaller parts called subatomic particles.
Atoms have hundreds of particles but only three matter… neutrons, protons and electrons.
Atomic nucleus :when protons and neutrons are packed together in the center of atoms, protons give a nucleus positive charge.
Atomic number is written as a subscript before the symbol of the element.
Atomic mass is the sum of the number of protons and neutrons in the nucleus of an atom.
energy levels of electrons
When two atoms approach each other during chemical reaction their nuclei do not come close to interact except for neutrons.
Energy is ability to work.
Potential energy is the energy that matters stores because of its position and location.
An electron has potential energy is determined by energy level.
The different states of potential energy that the electrons of an atom can have are called electron shells.
The chemical behavior of an atom is determined by the distribution of electrons in an atom's electron shells.
Valence electrons are electrons in the outermost shell.
Valence shell is the outermost electron shell.
An atom with a completed valence shell is non-reactive meaning it will not and interact with other atoms elements who have full valence shell are said to be inert, which means chemically unreactive.