What is the atomic number of oxygen?
Atomic number for oxygen 8. That means 8 protons and 8 electrons. Mass 16, 8 neutrons. Oxygen is diatomic, O2
What is the Atomic number of Boron?
Five (5). More details: Name: Boron Symbol: B Atomic Number: 5 Atomic Mass: 10.811 amu Melting Point: 2300.0 °C (2573.15 K, 4172.0 °F) Boiling Point: 2550.0 °C (2823.15 K, 4622.0 °F) Number of Protons/Electrons: 5 Number of Neutrons: 6 Classification: Metalloid Crystal Structure: Rhombohedral Density @ 293 K: 2.34 g/cm3 Color: brownish
What is the atomic number of Na+ and He+?
Thanks for the A2A.The atomic number is always maintained when ions are made. Making of ions only changes the electron number, not the neutron and proton numbers.So Na will have the same atomic number as Na+He will have the same atomic number as HeI hope this helps!Cheers!
What is the atomic number of X?
its not a specific element with certain atomic number but "*X*" indicates a variable group (usually a halogen)halogen (e.g F Cl Br etc )
What is the atomic number of calcium?
Our question is to find the atomic number of CALCIUM. But, before finding, let's learn the basic concepts behind atomic number…Atoms are made of three different kinds of subatomic particles: neutrons, protons and electrons. The nucleus, or center of an atom, is made of protons, which are positively charged particles and neutrons, which are neutral (have no charge). Electrons are negatively charged particles. Every atom has the same amount of protons and electrons, so every atom has a neutral charge.The atomic number or proton number(symbol Z) of a chemical element is the number of protons found in the nucleus of an atom. It is identical to the charge number of the nucleus. The atomic number uniquely identifies a chemical element. In an uncharged atom, the atomic number is also equal to the number of electrons.In order to find atomic number i. e Z of calcium, see the image below…Calcium lies in group 2 and 4th period in modern periodic table.Let's see how to identify “Z”…Consider the image below..From the image we can make out that,No. on top of the atom symbol is the atomic no.i. eFrom this image we can make out that,The atomic no. Of calcium is 20The atomic mass of calcium is 40.078~40.The symbol of calcium is “Ca”**courtesy image 1 and 3 : google images.Cheers!!!
What is the atomic number of oxygen?
The atomic number of oxygen is 8 as this element has 8 protons and 8 electrons. Number of protons or electrons determines the atomic number of an element and thus oxygen has 8 as it's atomic number. It is placed in the group 16 of the periodic table .(Source:Google)It might help.Thanks,Anisha Das
How is an atomic number determined?
The atomic number is the number of protons in the nucleus. That's it. Those protons are attracted by the strong nuclear force but repelled by their shared charge, so in every atom but hydrogen, one or more neutrons are needed to space out the protons a bit and weaken their mutual repulsion.When there aren't quite enough neutrons, you get an unstable radioactive isotope. Award-winning Scifi and Fantasy
What is the atomic number of chocolate?
Chocolate is a compound and not an element. So it does not have a an atomic number. It does have an atomic mass if you add all the masses of all the atoms in the molecule of the compound.
What does the atomic number tell us about an atom?
It defines the chemical properties of the atom/which element the atom belongs to. The atomic number is the number of protons. For an atom without charge, it must have an equal number of electrons. Those electrons will be in a specific configuration (determined by QM) in their lowest-energy state, which is the normal state. The “outermost” electrons will determine the valence (or valences), electronegativity, etc. which lead to all the chemical properties of an element.
What does an atomic number represent?
The atomic number represents or stands for the distinct identity of a chemical element.It is usually defined as the number or protons present in an atom of an element, which is also equal to the number of electrons.Even though an element can have different mass numbers in its different isotopes, the atomic number of an element always remains the same. This gives a distinct identity to the element.