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Atoms are made up of a nucleus, protons, neutrons and electrons.
The electrons are arranged in shells around the nucleus (made up of neutrons and protons).
The horizontal rows in the Periodic Table are called the periods. The period to which the element belongs corresponds to the number of shells of electrons.
For example, potassium, calcium and scandium all have 4 shells in their atoms.
As you go down the periodic table, the number of shells in one atom of a particular element increases, therefore the size of the atom increases, just like wearing three jackets makes you look bigger (in size) than when wearing just one.
What else can I help you with?
What trend is seen atom size going down the periodic table?
Excepting groups 5-12 of the periodic table.the atomic radius increase down in the group.
What is the atomic number and its trend on the periodic table?
The atomic number of an element is the number of protons in the nucleus of one atom of that element. In general, atomic numbers increase as you move to the right and down in the table.
What is the smallest and largest atom on the periodic table?
Smallest atom is hydrogen Largest atom is Francium
The center of an atom where protons and neutrons are located?
the periodic table
Where in the periodic table will largest atom be found?
group 1
What trend is seen atom size going down the periodic table?
Excepting groups 5-12 of the periodic table.the atomic radius increase down in the group.
What is an atom considered on the periodic table?
A atom is not on the periodic table, atoms are inside the elements and compounds on the periodic table if this helps :)
What is the most stable atom in the periodic table?
The most stable atom in the periodic table is helium.
What is the trend of oxidation numbers in the periodic table?
Oxidation numbers generally become more positive from left to right across a period and more negative down a group on the periodic table. This trend is due to changes in the number of valence electrons as you move across and down the table, impacting how likely an atom is to gain or lose electrons.
What causes the trend in electronegativity among elements in the periodic table?
The trend in electronegativity among elements in the periodic table is caused by the attraction of an atom for electrons in a chemical bond. Electronegativity increases from left to right across a period and decreases down a group due to changes in atomic size and effective nuclear charge.
What is the atomic number and its trend on the periodic table?
The atomic number of an element is the number of protons in the nucleus of one atom of that element. In general, atomic numbers increase as you move to the right and down in the table.
Is helium atom a compound?
no in periodic table He
What is the largest and smallest atom on the periodic table?
Smallest atom is hydrogen Largest atom is Francium
How the atom radius properties generally change as you go from left to right in the periodic table?
The melting temperature properties generally change as you go from left to right in the periodic table by going down/decreasing.
Contains only one type of atom it is found on the periodic table?
All elements in the Periodic Table contain only one type of atom.
What is the number of electrons in a neutral atom of an element on an periodic table?
There is none, but a neutral atom is called a neutron. There is no neutral element.
Does the periodic table tell you the number of protons?
The Periodic Table tells you how many protons are in an atom by their Elemental Number. In other words, yes, the Periodic Table tells you how many protons are in an atom.
