Which elements would you expect to have similar properties to magnesium?
Which elements would you expect to have similar properties to magnesium?
Solution : Calcium (Ca) and strontiun (Sr) are expected to shows chemical reaction similar to magnesium (Mg). This is because the number of valence electron(2) is same in all these three elements and since chemical properties are due to valence electrons, they show same chemical reactions.
What does element Be and Mg have in common?
They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). The elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure.
Which elements are the most similar?
Which two elements have the most similar chemical properties?
- Finding what elements have the most similar chemical properties is easy.
- Let’s try an example.
- Which two elements have the most similar chemical properties?
- (1) beryllium and magnesium.
- (2) hydrogen and helium.
- (3) phosphorus and sulfur (4) potassium and strontium.
- Answer: The correct answer 1: beryllium and magnesium.
Which element in group 1 is not a metal?
They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). (Like the other elements in Group 1, hydrogen (H) has one electron in its outermost shell, but it is not classed as an alkali metal since it is not a metal but a gas at room temperature.)
Are Group 1 metals?
The Group 1 elements are called the alkali metals. They are placed in the vertical column on the left-hand side of the periodic table . Group 1 elements form alkaline solutions when they react with water, which is why they are called alkali metals. …
Which element of Group 1 is most metallic and why?
The alkali metals in group 1 are the most active metals, and cesium is the last element in the group for which we have experimental data. Francium is extremely rare and is radioactive, with the longest half-life at 22 min, so there is no empirical evidence that francium is the most metallic element.
What is the metallic character trend?
Metallic character refers to the level of reactivity of a metal. Non-metallic character relates to the tendency to accept electrons during chemical reactions. Metallic tendency increases going down a group. Non-metallic tendency increases going from left to right across the periodic table.
What is the trend of metallic property in periodic table?
Metallic character increases as you move down an element group in the periodic table. This is because electrons become easier to lose as the atomic radius increases, where there is less attraction between the nucleus and the valence electrons because of the increased distance between them.
How do you determine metallic character?
Metallic character can be measured by the ease of an element to give away its valence electrons. It depends on the valence electron’s i) effective nuclear charge (ENC) and ii) distance from the nucleus. Let’s see what’s the periodic trend of Metallic character.
How does metallic character change in a group?
Metallic character is essentially how easily an atom gives away an electron to become a cation (which metals do). Going down a group, the atomic radius increases as well. Therefore, going down a group, since less energy is required to remove an electron, it becomes “easier”, and the metallic character increases.
What happens to metallic character as we move from left to right in the periodic table?
In the periodic table , As we go from left to right the metallic character decreases and the non metallic character increases. Hence, the tendency of the element to lose electrons decreases, this result in decrease in metallic character.
What does atomic radius mean?
Atomic radius: The radius of an atom. This distance between an atom’s nucleus and outer electron shell. Atomic radius differs with the bonding state of an atom (for example an nonbonded atom of an element versus the same element within a covalent bond).