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The reason the periodic table is the shape that it is has to do with the electronic configurations of the elements. The periodic table is arranged so that all the elements in each period (row) have similar electronic configurations to the other elements in that period. That also often means that elements in the same group (column) show similar chemical reactivity. Electrons in atoms are arranged in different orbitals (named "s", "p", "d", "f"). Elements in the same group all have the same number of electrons in their outer orbitals.
For instance, the alkali metals in the first column (lithium, sodium, potassium, rubidium, cesium, and francium) all have 1 electron in their outermost shell/layer (it turns out there are many shell, each one bigger than the previous one -- lithium has 2 shells while bigger atoms like cesium have 6 shells). What matters is that they all have a single electron in that outermost shell, regardless of how many shells they have in total. This same trend is observed in each group of the table, excluding most of the transition metals.
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What is the similarities in the modern periodic table and Mendeleev's table?
They have simliar properties and same elements although later on more elements were added to the modern periodic table.=Both periodic tables have elements grouped by similar properties. Mendeleev's periodic table had elements arranged in order of increasing atomic mass in columns with similar properties. While many of the elements are in order of atomic mass on the modern periodic table, some are not, as the modern table has elements arranged in order of increasing atomic number.=
Can elements be aranged according to their properties?
Yes, in fact that is the entire purpose of the periodic table, which is a listing of elements based on their properties. In this table, elements are grouped by atomic number (# of protons), and number of electrons in outer energy level. Patterns can be found in groups of elements called periods and families (rows and columns on the table). Google the periodic table for an explanation of how to use this and as an example for your question. I had a school project that asked me to groups the elements according to their properties in a different way than the periodic table.
What did Mendeleev create?
Mendeleev created the periodic table of elements. At his time, there was no grouping for the elements. He figured out that they can be grouped by mass and physical properties His result was so good that it correctly predicted elements that were not discovered yet.
What if the periodic table was rearranged based on a different organizing principle"?
If the periodic table was rearranged based on a different organizing principle, the elements would be grouped together in a different way than they are currently. This could potentially change our understanding of the relationships between elements and how they interact with each other.
How elements arrange?
On the periodic table, the elements are arranged by Atomic Mass. Helium and Hydrgen are at the way top of the table due to how they have the smallest amount of mass. The elements with the biggest mass are at the bottom.
What is one way scientists have grouped elements?
the Periodic Table of elements
One way Mendeleev grouped the elements in his periodic table was?
Mendeleev grouped the elements in his periodic table primarily by their atomic mass, arranging them in rows such that elements with similar properties fell into vertical columns. He observed periodic trends and left gaps for undiscovered elements, predicting their properties based on the patterns he identified. This innovative approach laid the groundwork for the modern periodic table, which is now organized by atomic number rather than atomic mass.
What is the similarities in the modern periodic table and Mendeleev's table?
They have simliar properties and same elements although later on more elements were added to the modern periodic table.=Both periodic tables have elements grouped by similar properties. Mendeleev's periodic table had elements arranged in order of increasing atomic mass in columns with similar properties. While many of the elements are in order of atomic mass on the modern periodic table, some are not, as the modern table has elements arranged in order of increasing atomic number.=
Can elements be aranged according to their properties?
Yes, in fact that is the entire purpose of the periodic table, which is a listing of elements based on their properties. In this table, elements are grouped by atomic number (# of protons), and number of electrons in outer energy level. Patterns can be found in groups of elements called periods and families (rows and columns on the table). Google the periodic table for an explanation of how to use this and as an example for your question. I had a school project that asked me to groups the elements according to their properties in a different way than the periodic table.
What did Mendeleev create?
Mendeleev created the periodic table of elements. At his time, there was no grouping for the elements. He figured out that they can be grouped by mass and physical properties His result was so good that it correctly predicted elements that were not discovered yet.
What if the periodic table was rearranged based on a different organizing principle"?
If the periodic table was rearranged based on a different organizing principle, the elements would be grouped together in a different way than they are currently. This could potentially change our understanding of the relationships between elements and how they interact with each other.
How elements arrange?
On the periodic table, the elements are arranged by Atomic Mass. Helium and Hydrgen are at the way top of the table due to how they have the smallest amount of mass. The elements with the biggest mass are at the bottom.
Who is the creator of the periodic table and why?
Dmitri Mendeleev is credited with creating the periodic table. He organized the elements in a way that grouped those with similar properties together and left gaps for undiscovered elements, correctly predicting their properties. Mendeleev's work laid the foundation for our modern understanding of the periodic table and its organization.
How did Dmitri Mendeleev figure out how to put the first periodic table together?
Mendeleev organized elements by their atomic mass and properties, arranging them in a table where elements with similar properties were grouped together. Gaps were left for undiscovered elements, allowing Mendeleev to predict the properties of these missing elements based on their position in the table. This led to the development of the first periodic table.
Why was mendeleev's periodic table valid at all?
His table was sorted by atomic mass, not atomic number. (the way today's periodic table is sorted) Mendeleev was almost right, but they did not know about protons at the time. (atomic number is the number of protons in an element) There would have been absolutely no way of him figuring out they were related to atomic number if he didn't even know about atomic number
Are more than three-fourths of the elements in the periodic table non-metals?
No it is the other way around. The majority of elements in the periodic table are metals.
Why are nitrogen and phosphorus are both in group 5 in the periodic table?
Both nitrogen and phosphorus are in group 5 of the periodic table because they have 5 valence electrons. This group is known as the nitrogen family or group 15. Both elements have similar chemical properties due to their shared electron configuration.
