In chemistry, the indication of the total number of protons present in the nucleus of one atom of a chemical element is usually done by their atomic number. The position of the chemical element in the periodic table is also represented by its atomic number...
How many protons are present if an atom has a mass number of 23 and atomic number of 11? The mass number is given at the top left of the elements symbol, for example, sodium has a mass number of 23. We know that the atomic number of sodium is 11. This tells us that sodium has1...
Learn what is argon. Understand argon properties, such as its melting point, see its formula on the periodic table, and explore its uses as a noble gas. Related to this Question How many protons does argon have? How many neutrons are in krypton?
One way an atom loses protons is through radioactive decay, which occurs when an atom has an unstable nucleus. The stability of a nucleus depends on the ratio of protons to neutrons. For smaller elements such as carbon and oxygen, the number of protons is roughly equal to the number of n...
How does an atom try to fill its valence shell? If you know the atomic number and the mass number of an isotope of an element, how can you determine the number of protons and neutrons? Explain the concept of the mole. How many electrons does aluminium have? Calculate the number of mole...
Suppose you take a really heavy atom—a stable kind of uranium called uranium-235. Each of its atoms has a nucleus with 92 protons and 143 neutrons. Fire a neutron at uranium-235 and you turn it into uranium-236: an unstable version of the same atom (a radioactive isotope of uranium)...
Does light travel as a wave, a ray or a stream of particles? Is it a single color or many colors mixed together? Does it have a frequency like sound? And what are some of the common properties of light, such as absorption, reflection, refraction and diffraction? You might think ...
To comprehend how we can gain access to such precise numbers, we have to ask ourselves: how does a breathalyzer work? What do those figures mean? And how do police officers find out if someone they suspect has been drinking is actually legally drunk? Many officers in the field rely ...
Atomic number:The number of protons in an atom's nucleus is referred to as the atomic number of that element. The number of protons defines what element it is and determines its chemical behavior. For example,carbon atomsalways have six protons;hydrogen atomsalways have one; andoxygen atomsalw...
These particles, made up of protons and neutrons, are large and can only travel a short distance -- in fact, they can be stopped with just a piece of paper or even your skin. However, inhalation or ingestion of alpha particles can be very dangerous. Once inside your body, alpha ...