What is a stable atom? Stability of an Atom: An atom is a microscopic particle made up of even smaller protons, neutrons, and electrons. All the electrons are arranged in a definite pattern of distribution called the electronic configuration. The chemical reactivity of an atom is directly ...
Basically, when a metal is composed uniformly of the same atom, they fit together very tightly and slide over each other easily. This is why pure gold is so soft and malleable. A steel alloy, on the other hand, is composed of a few different elements. The different sized atoms mixed ar...
Each one has a tiny, positively charged nucleus, balanced by a cloud of negatively charged electrons. These determine the atom’s properties. Split an atomic nucleus open and you’ll find subatomic particles called protons and neutrons. The simplest atom, hydrogen, has just one proton and no n...
The actual mass of an atom at rest is very difficult to measure, as even the most massive of atoms are too light to express in conventional units. As such, scientists often use the unified atomic mass unit (u) – also called dalton (Da) – which is defined as a twelfth of the mass...
What makes ICl3 reasonably more stable compared to other interhalogens? Define the term acid-catalyzed hydration. Define the term voltaic cells. Describe what is meant by the term standard electrode potential. Define strong-field ligand.
2. The Role Of Charge: Nucleophilicity Increases As An Atom’s Electron Density IncreasesSince a nucleophile is a species that is donating a pair of electrons, it’s reasonable to expect that its ability to donate electrons will increase as it becomes more electron rich, and decrease as it ...
In addition, the number of proton in the nucleus of an element makes up theatomic number.A proton mass is slightly little less than a neutron. Besides, one or more protons are present inside the nucleus of an atom and they are a necessary part of the nucleus of an atom. ...
In this early form of the atomic clock, the jolt of energy from the radiation caused electrons in the atoms to jump back and forth between energy levels, or orbits, around the atom’s nucleus. Because atoms of an individual element respond only to a specific and unique frequency (the ...
All elements are substances that are made up of just one kind of atom.Atomic clocksuse the tiny pieces that make up each atom to keep time. The most accurate clocks in the world use cesium because of a special property that makes the particles that make up cesium atoms relatively stable....
(about 6.022×1023). This number was chosen so that if an element has an atomic mass of 1 u, a mole of atoms of that element has a mass close to one gram. Because of the definition of the unified atomic mass unit, each carbon-12 atom has an atomic mass of exactly 12 u, and ...