Lithium, sodium, potassium, rubidium, and cesium are all part of a group called the
alkali metals
. … They are all soft metals in elemental form and they all react violently with water. They react so strongly because they all readily lose an electron to form the +1 cation very easily.
What do atoms of Group 1 elements do have in common?
The Group 1 elements have similar properties because of the electronic structure of their atoms – they all have
one electron in their outer shell
.
What do lithium sodium potassium rubidium cesium francium have in common?
This family consists of the elements lithium, sodium, potassium, rubidium, cesium, and francium (Li, Na, K, Rb, Cs, and Fr, respectively). Group one elements share common characteristics. They are all
soft, silver metals
. Due to their low ionization energy, these metals have low melting points and are highly reactive.
What do the elements in group 2 have in common?
The property that is common to all group 2 elements is that they tend
to form ionic bonds by losing electrons making these atoms positive charge
. They are called cations. These elements are beryllium, magnesium, calcium, strontium, and radium.
Why did Mendeleev group lithium sodium potassium rubidium and cesium together?
The alkali metals are the elements Lithium, Sodium, Potassium, Rubidium, Caesium and Francium. They are grouped together
because they all behave similarly (except with different ferocity)
and together form Group 1 of the Periodic Table.
What 3 things do Sodium Potassium and rubidium have in common?
They
are all soft metals in elemental form and they all react violently with water
. They react so strongly because they all readily lose an electron to form the +1 cation very easily.
What are the similarities between lithium and Sodium?
Lithium, Sodium, and Potassium have a similarity in them that is
they all have one electron in their outermost orbit
.
Why does Group 7 get less reactive?
Reactivity decreases down the group.
This is because group 7 elements
react by gaining an electron
. As you move down the group, the amount of electron shielding increases, meaning that the electron is less attracted to the nucleus.
Do Group 1 metals have high density?
The alkali metals also
have low densities
. They are low enough for the first three (lithium, sodium and potassium) to float on water.
Are Group 1 metals brittle?
The alkali metals, found in group 1 of the periodic table, are highly reactive metals that do not occur freely in nature. … As with all metals, the alkali metals are malleable, ductile, and are good conductors of heat and electricity. The alkali metals are
softer than
most other metals.
What 2 elements have the most in common?
Hydrogen and Oxygen
are two of the most abundant elements.
What is Group 2 called?
Group 2A (or IIA) of the periodic table are the
alkaline earth metals
: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). … In most cases, the alkaline earth metals are ionized to form a 2+ charge.
Why is Group 2 called alkaline earth metals?
Beryllium, magnesium, calcium, strontium, barium and radium are the elements in Group 2. For two reasons, these elements are referred to as Alkaline Earth metals,
Their oxides remain in the crust of the earth and are very heat-stable
. … The elements of Group 2 of the periodic table are alkaline earth metals.
What do rubidium lithium and sodium all have in common?
Lithium, sodium, potassium, rubidium, and cesium are all part of a group called the
alkali metals
. … They are all soft metals in elemental form and they all react violently with water. They react so strongly because they all readily lose an electron to form the +1 cation very easily.
Which is more metallic sodium or lithium?
Explanation: Metallic character means the reactivity of a metal. Smaller is the size of a metal more will be its ability to react. … Since, Li, Na, and K all belong to the same group therefore,
Li has highest metallic character
.
Why are lithium and sodium in the same group but in different periods?
Both metals are in group one of the periodic table, and therefore will react similarly, since they
both have one valence electron
. However, since the Na atom’s valence electron is further away from the nucleus than Li’s valence electron, Na is more reactive than Li, as it will lose its valence electron more easily.
