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Did mendeleev group the elements by density?
Chemistry books say that he grouped the elements by atomic weight. That is not the same as density.
What is the density of the element chlorine?
The density of chlorine is 0.00321g/cm3. The density of the halogens or group 17 elements increases down the group, which is why bromine is liquid and astatine is a solid at room temperature.
What is the number of valence electrons for the elements in group 1?
The elements in Group 1 have one valence electron in their outermost s orbital.
What is the electronic structure of group 1 elements?
An outer electron shell with only one electron.
What trends in the elements properties do you notice about elements that are in the same group?
They have the same valency. The atomic radius of elements increases by one as you go down the group. They also have the same properties
Did mendeleev group the elements by density?
Chemistry books say that he grouped the elements by atomic weight. That is not the same as density.
Why do group 1 elements have a low density?
The group one elements have the lowest ionization energies because of their large atomic size which makes the outermost electron only weekly held by the nucleus.
What is the density of the element chlorine?
The density of chlorine is 0.00321g/cm3. The density of the halogens or group 17 elements increases down the group, which is why bromine is liquid and astatine is a solid at room temperature.
Group one is the what elements?
Group one elements are the alkali metals.
How does the density of the elements change from silicon to leaf in group 4A?
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Why does the density of group 2 metals increase?
The density of group 2 metals increases as you go up the group. This is because atomic radius decreases as you go up the group. Density is mass / volume and the ratio of mass to volume of atoms of the elements goes up with the decrease in radius.
Is density a property of an object or a property of the substance the object or a property of the substance the object is made of?
Density (or more properly Relative Density) is an elemental property. An object made from one or more elements will have a density related to the density of the elements.
What is the number of valence electrons for the elements in group 1?
The elements in Group 1 have one valence electron in their outermost s orbital.
What group does group one from the periodic table likes to reacts with?
Group one elements are the most reactive with group 7 elements as it is the easiest way for the elements to complete their outer shell as the group one element gives its extra electron to the group 7 element and then the group 7 element has a full shell too.
What are the families of group A elements?
The group A elements together comprise one family called as 'Alkali metals'.
What is special about group one a eighteen on the periodic table?
Group 1 elements are alkali metals. Group-18 elements are inert in nature.
How many unpaired electrons are there in an element in group 3A?
In group 3A elements, or elements in group 13, have only one unpaired electrons.
