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What property of elements is used to organize the periodic table?
There are many factors that go into how elements are arranged in the periodic table. The main factor is that they increase left to right by atomic number. Elements are also grouped by families (columns) and periods (rows). Elements of the same family have the same number of valence electrons and also will have similar properties. Certain families will thus bind well ith each other while others will not. Though not organized as so, atomic mass usually increases with atmic number, but there are some exceptions to this.
What are the three main elements that make up living things?
carbon,hydrogen,oxygen
Three main elements that make up living things?
solid liquid gas
How did Dalton define an element?
John Dalton's most important theory, developed in 1803, was that matter is composed of atoms of differing weights that combine in simple ratios.Dalton published a book in 1808 listing the atomic weights of a number of known elements relative to the weight of hydrogen. Although not entirely accurate when published, those weights form the basis for the modern periodic table of the elements.John Dalton has been honored by having his name used as the international atomic mass unit, equivalent to 1/12 of the mass of a neutral carbon-12 atom, the dalton.
What can plants make?
Plants can make us live as they give out oxygen.
Which group of the main group elements contains the largest elements?
Group 18 (Noble Gases) contains the largest main group elements because they have the highest atomic numbers and largest atomic radii among the main group elements.
The two rows of elements placed at the bottom of the periodic table represent what elements?
The two rows of elements at the bottom of the periodic table are the lanthanides and actinides. The lanthanides are elements with atomic numbers 57 to 71, while the actinides are elements with atomic numbers 89 to 103. These rows are known as the f-block elements and are placed below the main body of the periodic table to conserve space.
Do transition elements follow the same trend of atomic radius as the main group elements?
NO
Which group of the main group elements contains the largest elements - Atomic Radius?
Group-1 has largest atomic radius. It decreases across a period
How are the element within a row different?
They have different numbers of valence electrons.
How many elements under atomic number 101 have names ending with ium?
Well, darling, elements with names ending in "ium" are usually metals, and they're as common as wrinkles on a raisin. But if we're talking about elements with atomic numbers less than 101, then there are 8 elements with names ending in "ium." So, to answer your question, there are 8 elements under atomic number 101 that have names ending with "ium."
Are the atomic masses of some elements actually fractional?
Atomic mass is not the same as atomic weight. It refers to the weight in amu (atomic mass units ) of a specific isotope. These weights are not whole numbers, the mass of protons and neutrons are slightly different and there is the phenomenon of binding energy of the nucleus which is obseved as a difference in mass (sometimes expressed as the packing fraction). For atomic weights the main reason is that naturally occuring elements consist of mixtures of isotopes.
What are the name three elements?
Iridium Einsteinium
What relationship does a atomic number have with the periodic table?
All the elements are arranged according to atomic number.Number of electrons decide the position of the element.Atomic number is the root main cause of periodic table.
What is difference between lanthanide and actinide?
If you are talking about the elements then they are two different elements with different atomic no. and properties. On the other hand if you are talking about the 2 groups in the F block then there are 3 major differences: 1. Except for Promethium lanthanoids are not radioactive while all Actinoids are 2. Oxidation state is usually +3 for Lanthanoids and they also show +2 & +4 while Actinoides show +4,+5,+6,+7 Oxidation States 3. The magnetic property of Actinoids are more complex than Lanthanoids
What was one main point of Dalton's atomic theory?
Atoms are made up of the smallest form of matter
Which element in each pair has atoms with a larger atomic radius selenium oxygen?
For the representative elements (main group elements), atomic radius generally decreases from left to right across a period. Example: B and Fl: Fl has the smaller atomic radius Li and Be: Be has the smaller atomic radius
