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Their outermost electrons are in the same shell. For example, Helium and Hydrogen have 1 and 2 electrons respectively, and these electrons exist within the first electron shell. Lithium has 3 electrons and the third of these electrons is in the second electron shell, and so, it is a member of the 2nd period of the Periodic Table.
What else can I help you with?
Are atoms of nonmetals among the largest atoms?
Atoms of nonmetals tend to be smaller than atoms of metals in the same period.
What do all the atoms in the same period have in common?
All member of the same period share the same number of energy levels. The energy levels range from one up to seven.
How is the number of energy levels in an atom related to the periodic number?
The period number is the same as the highest energy level containing electrons for the atoms in that period.
How many atoms are larger than Ca and in the same period as Ca?
There are 17 elements larger than calcium (Ca) on the periodic table in calcium's period.
Which of the atoms in the table are atoms of the same element?
To determine which atoms in a table are of the same element, you would look for atoms that have the same atomic number, as this identifies the element. Atoms of the same element will also have the same number of protons in their nucleus. If isotopes of an element are present, they will have the same atomic number but different mass numbers due to varying numbers of neutrons.
Are atoms of nonmetals among the largest atoms?
Atoms of nonmetals tend to be smaller than atoms of metals in the same period.
What do atoms of the same period have in common?
They all have the same number of energy levels. That's about it.
What do all the atoms in the same period have in common?
All member of the same period share the same number of energy levels. The energy levels range from one up to seven.
What is the element in the fourth period whose atoms have the same number of electrons in their highest energy levels that tins atoms do?
bromine, i think
How is the number of energy levels in an atom related to the periodic number?
The period number is the same as the highest energy level containing electrons for the atoms in that period.
What is the element in the fourth period whose atoms have the same number of electrons in their highest energy levels at that tins do?
The element in the fourth period with atoms that have the same number of electrons in their highest energy level as tin is germanium. Both tin and germanium are in the same group (Group 14) of the periodic table, so they have the same number of valence electrons.
How many atoms are larger than Ca and in the same period as Ca?
There are 17 elements larger than calcium (Ca) on the periodic table in calcium's period.
Fr9m left to rigth in a period the size of atoms?
From left to right in a period the size of the atoms decreases.
Why are potassium and bromine kept in the same period?
Potassium and bromine are kept in the same period (period 4) of the periodic table because they have the same number of electron shells in their atoms. Both elements are located in period 4 because they follow the periodic trend of increasing atomic number and electron configuration across a row of the periodic table.
Atoms of the same element always have the same number of what?
All atoms of a given element have the same number of protons in a nucleus. It is the number of protons in an atom's nucleus that determines the elemental identity of any atom. Period.
What do you notice about the number of energy levels in an atom of an element in the period the element is in?
The atom of an element in the third period of the Periodic Table has 3 energy levels and so on. Also, atoms of elements in the same group have the same no. of valence electrons.
What atoms have the same atomic number?
Atoms of the same Element have this.
