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The atomic number tells us the number of electrons and the number of protons., i.e. Atomic Number = Number of electrons = Number of Protons. The Atomic Mass tells the total number of particles in the nucleus, i.e. Atomic Mass = # of protons + number of neutrons. The Group number is the heading at the top of a column in the table. It tells the the outer electron configuration of the atom. This determines many chemical properties of the element.
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SteveThe group number on the Periodic Table indicates the number of valence electrons an element has. Elements in the same group have similar chemical properties because they have the same number of valence electrons, leading to similar reactivity and bonding characteristics.
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What period is argon in?
Argon is in the period 3 of the periodic table. It is the third element in the 18th group of the periodic table.
What element on the periodic table has the largest atomic number?
The element with the largest atomic number on the periodic table is Oganesson, with the atomic number 118.
What are the vertical columns of a periodic table called?
The vertical columns of a periodic table are called groups or families. They share similar chemical properties because they have the same number of valence electrons.
Elements are organized in the periodic table by their?
Elements are organized in the periodic table by their atomic number, which represents the number of protons in the nucleus of an atom. The atomic number determines the unique properties of each element, and elements with similar properties are grouped together in columns called groups.
What place on the periodic table does radium belong in?
Oh, dude, radium is like that cool kid hanging out in Group 2 of the periodic table, also known as the alkaline earth metals. It's chilling right below barium and above francium, just doing its thing, being all radioactive and stuff. So yeah, radium is like the rockstar of Group 2.
