Do Li and Na have similar properties?
The ones "most" similar would be the ones closest in mass as well. Among Li and K, the mass of sodium is closest to Li. Hence, Lithium has the most similar properties to sodium.
Atoms of group 1 elements all have one electron in their outer shell. This means that the alkali metals all have similar chemical properties .
Group 1 elements include the alkali metals, Li, Na, K, Rb, Cs, Fr. The alkali metals are all soft, shiny and metallic when cut. They react easily with water, have low melting points and densities, and are good conductors of electricity. They all have one valence electron that they lose easily to form ions.
Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
For example, pairs lithium (Li) and magnesium (Mg), beryllium (Be) and aluminium (Al), boron (B) and silicon (Si), etc are exhibiting similar properties. Boron and Silicon are both semiconductors. Thus Magnesium and Lithium have similar properties.
The elements in the first column of the Periodic Table (other than hydrogen) are known as Group 1A metals, or alkali metals. When you compare the chemical properties of these elements (lithium, sodium, potassium, rubidium, cesium, and francium), what you'll notice is that they are all remarkably similar.
(a) Both Li and Na are active metals since their atoms have only one electron in their valence shells. They readily lose their single electron to attain the stable configuration of nearest noble gas.
Alkali metals share many similar properties including: They are shiny, soft, metals. They are very reactive. They all have one valence electron in the outermost shell which they seek to lose in order to have a full outer shell.
Sodium is more reactive than lithium because sodium is larger in size. Outermost electrons are less tightly held in sodium than in lithium. As a result, sodium loses its outermost electron more easily than lithium. Hence, it is more reactive than lithium.
As Na atom is larger than Li atom, therefore, Na+ ion is also bigger in size than Li+ion. (v) P or As: Both these atoms belong to group 15 of the periodic table. Since As is placed after P, therefore its size is large because atomic size increases down the group.
Why is Na larger than Li?
Sodium would have a greater atomic radius when compared to lithium. Sodium is larger because it has one more energy level than lithium. This allows sodium's electrons to be further away from the nucleus. Sodium also has more shielding than lithium.
The electron arrangements of the atoms are different, as they have different atomic numbers and are in different groups on the periodic table.
UPLOAD PHOTO AND GET THE ANSWER NOW! Solution : Zr and Hf are chemically most similar, they have same atomic size. Hence, they are known as twins of the periodic table.
- boron and carbon.
- oxygen and sulfur.
- aluminum and bromine.
- argon and silicon.
Ca and Ba are earth -alcaline metals and have similiar characteristics: are solid rather reactive with a basic features in water.
Families of the Periodic Table. On the periodic table, there are families which are groups of elements with similar properties. These families are alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, halogens, noble metals, and noble gases.
Detailed Solution. Lithium (Li), Sodium (Na), and Potassium (K) has one electron in their outermost orbits. They belong to group 1 and hence they are Alkali Metals and not alkali earth metal.
Elements in the same group of the periodic table have the same number of valence electrons. Therefore, they have similar chemical properties.
Sodium is a metal because it is a good conductor of electricity, malleable and ductile. It can lose electrons easily from the valence shell whereas carbon is a bad conductor of electricity, not lustrous or malleable. It does not lose electrons easily.
We can see from the electronic configurations of Y and Z , that they have the same valence shell (L). Therefore, elements Y and Z belong to the same period in the periodic table.
What do all alkali metals have in common quizlet?
They all have the same number of valence electrons, They all have similar physical properties, They all form +1 ions, and They all undergo similar reactions.
The elements in group 1 are called the alkali metals . The alkali metals share similar physical and chemical properties .
- Alkali metals are very reactive.
- They react with water. It can explode sometimes when it comes in contact with air and water.
- They are malleable and good conductors of heat and electricity.
Lithium is much harder than the other alkali metals due to strong metallic bonds.
All the group 1 metals are reactive, but they get more reactive as you go down the group, so potassium is more reactive than sodium, which is more reactive than lithium.