- These have an outer electronic configuration of .
- These are strong reducing agents.
- These are shiny, silvery-white metals.
- These form oxides, halides, and hydroxides when reacted with oxygen, halogens, and water respectively.
What properties are characteristics of group 2 elements at STP?
At standard temperature and pressure (STP), two atoms of the element bind to form dioxygen,
a colorless, odorless, tasteless diatomic gas with the formula
O 2. Included in the group two elements are Beryllium(Be), Magnesium(Mg), Calcium(Ca), Strontium(Sr), and Barium(Ba).
Which properties are characteristic of Group 2?
Term. Alkaline earth metalsA group of chemical elements in the periodic table with similar properties:
shiny, silvery-white, somewhat reactive at standard temperature and pressure
. They readily lose their two outermost electrons to form cations with charge +2.
What is the phase of Group 2 at STP?
Group 2: Alkaline Earth Metals
Alkaline Earth metals are silvery grey in color. They are harder and denser than the alkali metals. All are
solids at room temperature
. The alkaline Earth metals make up group 2 of the periodic table.
Which properties are characteristic of group 1 elements at STP?
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.
Which element in group 2 is the most reactive?
The
alkali metals
are the most reactive metals. Group 2 consists of the alkaline Earth metals. They are very reactive but less so than the alkali metals.
What are the uses of Group 2 elements?
- Be is used in the manufacture of alloys. Cu-Be alloys are used in the preparation of high strength springs.
- Mg is used to prepare alloys with Al, Zn, Mn and Sn. …
- Ca is used in the extraction of metals from their oxide.
- Radium salt are used in radiotherapy.
What is group 2 called What are the common properties of this group?
The Group 2 alkaline earth metals include Beryllium, Magnesium, Calcium, Barium, Strontium and Radium and are soft, silver metals that are less metallic in character than the Group 1 Alkali Metals.
What are the properties of group 8 elements?
- They are inert gases located on the right of the periodic table.
- They have a full-set of valence electrons, so they’re stable.
- They are colorless, odorless and tasteless.
- They have low melting and low boiling points.
What does 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.
What is the least reactive element in group 2?
The least reactive element in group 2 is
beryllium
. Even at red heat beryllium will not react with water and it does not react with dinitrogen (N
2
).
Which element in group 2 is most metallic?
Among the group 2 elements,
radium
is known to have the greatest metallic character and it can, therefore, be considered the most metallic group 2 element. This is because the metallic character of elements increases while traversing down a group, and radium is at the bottom of group 2 in the modern periodic table.
Which elements is a solid at STP?
Solids: particles vibrating in a fixed regular geometric pattern. (Crystal lattice structure) Most elements exist as solids at STP.
Most metals
are solids at STP except for Mercury. Metalloid solids- B, Si, Ge, As, Sb and Te.
What are the physical properties of Group 7 elements?
The halogens have
low melting points and low boiling points
. This is a typical property of non-metals. Fluorine has the lowest melting and boiling points. The melting and boiling points then increase as you go down the group.
What are the Group 1 elements called?
Group 1A —
The Alkali Metals
. 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).
What is the physical properties of Group 1?
General physical properties of Group 1 elements:
Alkali metals
are grey solids with shiny silvery surfaces when freshly cut
. These surfaces turn dull when exposed to air. This is because alkali metals are very reactive. They react rapidly with oxygen and water vapour in the air when exposed.
