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How can we calculate the atomic number bet we can't see the electrons?
Wiki User
∙ 11y ago
We don't need to. The atomic number is based on the number of protons. Since all elements as they appear in the Periodic Table have the same number of protons and electrons, if we know one, we know the other.
Wiki User
∙ 11y ago
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How many number of protons and electrons for this atom or ion?
The atomic number tells you the number of protons. For instance oxygen has an atomic number of 8, and hence it has 8 protons. Electrons are slightly more complicated. In a neutral atom, the number of electrons is always the same as the number of protons. However, if the atom is charged (i.e. it is an ion), it may have more electrons than protons (negatively charged) or less electrons than protons (positively charged).
What is the atomic number the atomic mass and the number of neutrons of the element hydrogen?
The 'standard' hydrogen atom has atomic number 1, atomic mass 1, no neutrons. Although there are 2 other isotopes of hydrogen: - (cant confirm name) which has atomic mass 2 and 1 neutron. - (cant confirm name) has atomic mass of 3 and 1 neutron. All isotopes have atomic number 1.
How many atoms in PVC?
We make atomic number by number of protons in a atom. PVC is not single atom. We cant give it a atomic number.
How cant you tell isotopes of the same element apart?
You can tell isotopes apart by the difference in there atomic mass numbers. Take for example the isotope Carbon-12. Carbon is the element name and 12 is the atomic mass of the element. The atomic mass number can (most?) always be changed, but the the atomic number ( the number above the Element symbol on the Periodic Table) cannot. Remember: The number of protons add by the number of neutrons equals the atomic mass number. The proton number = the atomic number, as of the number of electrons= the atomic number; hence the atomic number= number of proton = number of electron.
Is electron is matter?
Electrons are sub atomic particles and they are matter as they have mass and electric charge.
How can you find the nucleus with no mass number?
you cant get the # of neutrons if there is no atomic mass because you have to subtract the atomic # from the atomic mass #. so there is no way that u can find the # of neutrons without the atomic mass it is needed!
Atomic number for ammonia?
Ammonia is a compound. We cant give a atomic number.
How many number of protons and electrons for this atom or ion?
The atomic number tells you the number of protons. For instance oxygen has an atomic number of 8, and hence it has 8 protons. Electrons are slightly more complicated. In a neutral atom, the number of electrons is always the same as the number of protons. However, if the atom is charged (i.e. it is an ion), it may have more electrons than protons (negatively charged) or less electrons than protons (positively charged).
What is the atomic number the atomic mass and the number of neutrons of the element hydrogen?
The 'standard' hydrogen atom has atomic number 1, atomic mass 1, no neutrons. Although there are 2 other isotopes of hydrogen: - (cant confirm name) which has atomic mass 2 and 1 neutron. - (cant confirm name) has atomic mass of 3 and 1 neutron. All isotopes have atomic number 1.
How many atoms in PVC?
We make atomic number by number of protons in a atom. PVC is not single atom. We cant give it a atomic number.
How cant you tell isotopes of the same element apart?
You can tell isotopes apart by the difference in there atomic mass numbers. Take for example the isotope Carbon-12. Carbon is the element name and 12 is the atomic mass of the element. The atomic mass number can (most?) always be changed, but the the atomic number ( the number above the Element symbol on the Periodic Table) cannot. Remember: The number of protons add by the number of neutrons equals the atomic mass number. The proton number = the atomic number, as of the number of electrons= the atomic number; hence the atomic number= number of proton = number of electron.
Is electron is matter?
Electrons are sub atomic particles and they are matter as they have mass and electric charge.
How do you determine the number of protons in the nucleus?
The number of protons in an atom determines the chemical identity of that atom. (And only that, by the way.) We use the atomic number to state the exact number of protons in all atoms of a given element. Hydrogen has the atomic number 1 because every atom of hydrogen has exactly one proton. Also, every atom with exactly one proton is hydrogen. Helium is atomic number 2, and the same thing applies. All helium atoms have exactly 2 protons, and all atoms with exactly 2 protons are helium atoms. To determine the number of protons in a given atom, look at which element it is and find it on the periodic table or on a list of the elements. Then find its atomic number, which will be the exact number of protons in every atom of that element.
Why are atomic numbers always whole numbers?
An atom can't contain only part of a proton, so the number must always be a whole number
How do yo find the neutrons of an atom?
Refer to the periodic table of elements the number above the letter (atomic #) refers to the number of protons in the nucleus NOTE: in a neutral atom, we know that #protons = #electrons the number below the letter(atomic mass) refers to the number of protons + neutrons therefore if we take ATOMIC MASS - ATOMIC # = # NEUTRONS
How scientists can tell the difference between elements if they cant do it by neutron number or electric charge?
The important thing is the number of positrons in the nucleus - this is the atomic number.
The diameter of an atom is?
in the bottom Atomic nucleus is at the center of the atom.
