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You look in which periodical group they are (not in which period)

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Related Questions

Which element has the total number of electrons is equal to the number in chlorine?

Potassium, with 19 electrons, has the same count as chlorine which also has 17 electrons.


How do you make a lewis dot structure?

Count the number of valence electrons for each element.


What is the atomic number of an atom or element?

The atomic number is the count of how many protons an atom has in its nucleus (and therefor also the count of how many electrons the neutral atom possesses). The atomic number is unique for each element and positions the element in the Periodic Table.


How is the number of electrons is a neutral atom of a given element related to the atomic number of that element?

The atomic number tells you how many protons are in the element. The proton count is the same as the electron count as all elements have a charge of zero giving them the same. Simplified: the atomic number shows you how many electrons and protons are in the element. If it is a compound and it has a charge of +1 that means the element has lost one electron and has a positive charge. If it gained a electron it would be -1 as electrons are negatively charged.


How is the number of electrons for a neutral atom of a given element related to the atomic number of that element?

The atomic number tells you how many protons are in the element. The proton count is the same as the electron count as all elements have a charge of zero giving them the same. Simplified: the atomic number shows you how many electrons and protons are in the element. If it is a compound and it has a charge of +1 that means the element has lost one electron and has a positive charge. If it gained a electron it would be -1 as electrons are negatively charged.


What is the atomic number in the nucleus of a atom of the element?

The atomic number is the count of how many protons an atom has in its nucleus (and therefor also the count of how many electrons the neutral atom possesses in its electron shells). The atomic number is unique for each element and positions the element in the periodic table.


What is the atomic number of an atom element?

The atomic number is the count of how many protons an atom has in its nucleus (and therefor also the count of how many electrons the neutral atom possesses). The atomic number is unique for each element and positions the element in the Periodic Table.


How do you know how many unpaired electrons are in an element?

You can determine the number of unpaired electrons in an element by examining its electron configuration. Unpaired electrons are found in the outermost energy level, and you can count them by looking for half-filled or singly occupied orbitals in the notation of the element.


What element has 1s2 2s2 2p3 3p6?

Magnesium, Mg


What do atoms represent?

to what number the element can count to


What is the difference between effective valence electron and outer shell count?

Number of electrons in outer shell determines thechemical nature of the element and is unique per element. Effective Valence electrons is a calculated ratio between two concentrations of electrons. if n=resisitivity/(e*driftMobility) and n_at=density*Avogadro#/AtomicMass. Effective valence electrons is then n/n_at. Rounding this number should agree with outer shell electrons as predicted from the periodic table.


What element has a atomic mass of 39.9?

The atomic number is the count of how many protons an atom has in its nucleus (and therefor also the count of how many electrons the neutral atom possesses). The atomic number us unique for each element and positions the element in the periodic table. The element with atomic number 39 is Yttrium (Y).