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

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Q: How do you count the number of kernal electrons in an element?
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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 do you make a lewis dot structure?

Count the number of valence electrons for each element.


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.


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

Magnesium, Mg


What do atoms represent?

to what number the element can count to

Related questions

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 do you make a lewis dot structure?

Count the number of valence electrons for each element.


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 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 element has 1s2 2s2 2p3 3p6?

Magnesium, Mg


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).


What do atoms represent?

to what number the element can count to


If i wanted to find the chemical element of an atom what will i need?

A periodic table. Count the number of electrons neutrons and protons and the rings which contain the electrons. Then refer to the table. It's group number is the number of electrons in the outer shell. The period number is the number of shells in the atom (the rings). So one ring with one electron in it would be group one, period one. Which is the element hydrogen. 4 rings with 2 electrons in th outer ring would be calcium etc.


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.


How can you determine the number a valence electron an atom has?

you must plot out the element like protonéatomic number by using the bhor diagram