2\. Above the symbol is the atomic number (Z) which is equal to the number of protons in the nucleus and the number of electrons in the electron cloud (given that the atom is neutral). For carbon Z=6. 3\. Below the symbol is the atomic mass. While this number is a weighted aver...
You are given an element 7X14.Find out.a.1.number of protons,electronsneutrons in Xa.2.valency of Xa.3.electronic configuration of X.b.If Bromine atom is available in the form of, say two isotopes35BR79 (49.7
Atoms are composed of three particles: protons, neutrons and electrons. The nucleus is composed of protons and neutrons, collectively referred to as nucleons, and have positive and neutral charges, respectively. Electrons are located around the nucleus and have a negative charge. All elemental atom...
total number of protons in an atom is called the atomic number. the sum of the number of neutrons and protons is known as the mass number. in an atom, the number of protons is always equal to the total number of electrons which makes it neutral due to equal and opposite charges of ...
In Step 2, we find the number of moles of each element using the mass values found in the previous step. In case you’ve been living under a rock, moles are a unit of measurement used to measure the quantities of small particles, such as atoms, molecules, electrons, protons, neutrons,...
18 is not 17.65625 Average atomic mass is dependent upon the abundance of each isotope What is an isotope? An atom with a different number of neutrons Different isotopes of an element all of the same number of protons
200分求一道物理题,求懂英文的高手来帮下忙A certain isotope has 80 protons and 122 neutrons in its nucleus.Identify the element involved and find the atomic and mass numbers.Atomic number=Mass number=
The human body is mostly composed of what element? a. Nitrogen b. Carbon c. Oxygen What characteristic of an element determines its specific isotope? A. Number of protons B. Number of neutrons C. Number of electrons D. Number of quarks...
are not enough to prove the existence of a planet in the case of binaries, however, because binary stars' magnetic activity fluctuates periodically, just as the sun's magnetic field changes polarity every 11 years, with turbulence and the number and size of sunspots peaking and then declining....
You can think of this as counting each proton or neutron as 1 and ignoring the masses of electrons because they are so small in comparison. So the formula for relative atomic mass is simply: Relative atomic mass = number of protons + number of neutrons However, since scientists set a ...