They have different numbers of valance electrons...
The elements in a period of Periodic Table have only one common factor that is same no of shells but the no of valence electrons are different for each and every atom so they have different chemical and physical properties.
Because they have different amounts of outer electrons and electron configurations. The electron configurations define the structure and bonding of the elements which defines the properties. However, elements in the same groups have the same amount of outer electrons and therefore the same structure and bonding ( except metals and non- metals which have different types of bonding) and therefore have similar properties.
all of the elements are in the same table but the properties are to do with the reactivitie sieries eg potassiom and magnesium are VERY reactive; but silver, gold and platinum arent reactive, that is why it is so expensive and is used for wedding rings - zak chivers aged 12
atoma
and compounds
They have different numbers of valance electrons...
all the elements in period 1 have one energy level, all the elements in period 2 have two energy levels, all the elements in period 3 have 3 energy levels... and so on
The relationship is that the elements are organized by periods. Each row is a period and it goes from left to right. Each row is a period identified by different colors. Elements on the same row have something in common. All of the elements in a period have the same number of atomic orbitals. For example all the elements on the 1st row have only one orbital for its electrons. All the elements on the 2nd period (row) have two orbitals for its electrons. This repeats to period (row) 7. - Brian Tui
In the Periodic Table Of Elements, elements are not necessarily similar under the same period. But, they are similar under the same group. they only have one thing in particular they have the same amounts of shells for the atoms
period 3
period
By their atomic weight..protons and electrons.
Period 1: 2 elements Period 2: 8 elements Period 3: 8 elements Period 4: 18 elements Period 5: 18 elements Period 6: 32 elements Period 7: 25 elements
They have different numbers of valance electrons...
A period is a row of elements
All elements comprising the period 7 in the periodic table are radioactive. In total this period has 32 elements.
all the elements in period 1 have one energy level, all the elements in period 2 have two energy levels, all the elements in period 3 have 3 energy levels... and so on
Elements in the same period (row) have the same number of electron shells or energy levels
The periodization of history of India has different elements. The period of 1500 - 1000 BC was called the Vedic period. The period of 322 - 187 BC was called the Mauryan period.
The relationship is that the elements are organized by periods. Each row is a period and it goes from left to right. Each row is a period identified by different colors. Elements on the same row have something in common. All of the elements in a period have the same number of atomic orbitals. For example all the elements on the 1st row have only one orbital for its electrons. All the elements on the 2nd period (row) have two orbitals for its electrons. This repeats to period (row) 7. - Brian Tui
Because certain groups have different characteristics, so when you move to a different group the characteristics will be different.
In the Periodic Table Of Elements, elements are not necessarily similar under the same period. But, they are similar under the same group. they only have one thing in particular they have the same amounts of shells for the atoms