The general form for the electron configuration of each alkali metal is ns1, where the n refers to the highest occupied principal energy level. For example, the electron configuration of lithium (Li), the alkali metal of Period 2, is 1s22s1.
Also What is alkaline earth metal configuration?
The general electron configuration of all alkaline earth metals is ns2. … They tend to be harder, stronger, and denser than the alkali metals, and they also form numerous compounds with nonmetals. [Figure 4] The alkaline earth metals include beryllium, magnesium, calcium, strontium, and barium.
Subsequently, What are alkali metals give examples? The alkali metals are six chemical elements in Group 1, the leftmost column in the periodic table. They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
What is the general electronic configuration of the outermost shell of alkali metals? ns2np4.
What electron configuration do group 17 have?
The elements of Group 17 (fluorine, chlorine, bromine, iodine, and astatine) are called the halogens. The halogens all have the general electron configuration ns2np5, giving them seven valence electrons. They are one electron short of having full outer s and p sublevels, which makes them very reactive.
Which of the following configuration corresponds to an alkaline earth metal?
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– Group 2 elements are mostly found in earth’s crust & thus are called alkaline earth metals. – For example, Be, Mg, Ca, Sr, Ba, Ra. – Electronic configuration of alkaline earth metals is given by ns².
Which element has the electron configuration of 1s 2 2s 2 2p 6 3s 2 3p 4?
| Element | Atomic number | Electron configuration |
|---|---|---|
| silicon | 14 |
1s 2 2s 2 2p 6 3s 2 3p 2 |
| phosphorus | 15 |
1s 2 2s 2 2p 6 3s 2 3p 3 |
|
sulfur | 16 |
1s 2 2s 2 2p 6 3s 2 3p 4 |
| chlorine | 17 |
1s 2 2s 2 2p 6 3s 2 3p 5 |
What are properties of alkaline earth metals?
Properties of Alkaline Earth Metals
- shiny.
- silvery-white.
- somewhat reactive metals at standard temperature and pressure.
- readily lose their two outermost electrons to form cations with a 2+ charge.
- low densities.
- low melting points.
- low boiling points.
What is alkali metal Class 10?
In the periodic table, the alkali metals are a group or column containing the chemical elements such as lithium (Li), sodium (Na), rubidium (Rb), potassium (K), francium (Fr) and Caesium (Cs). … All the alkali metals react with water, with the heavier alkali metals reacting more overwhelmingly than the lighter ones.
What are alkalis give two examples?
Soluble bases are called alkalis. they need a slippery, soapy feel and form solutions with pH values greater than 7. Common examples include caustic soda , milk of magnesia , sodium bicarbonate (sodium bicarbonate), hypochlorite and ammonia.
What are alkali metals Class 11?
The alkali metals are Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs) and Francium (Fr). The alkali metals react vigorously with water forming soluble hydroxides which are called alkalis. This is the reason why these metals are called alkali metals.
What is the outermost orbital for the alkaline earth metals?
Number of electrons in the outermost orbital of alkaline earth metal is “two”.
Which one of the following configuration represent an alkali metal?
The general form for the electron configuration of each alkali metal is ns1, where the n refers to the highest occupied principal energy level. For example, the electron configuration of lithium (Li), the alkali metal of Period 2, is 1s22s1.
What is the outermost electron composition of alkaline earth molecules?
Summary. The alkaline earth elements are in Group 2 of the periodic table. These elements each have two s electrons in their outer shell. The alkaline earth elements are less reactive than the alkali metals.
What is the outermost electronic configuration of group 17 and 16?
Electronic Configuration of Group 17 Elements
The valence shell electronic configuration of these electrons is ns2np5.
What is group 17 on the periodic table called?
halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
What is the electron configuration of noble gases?
A noble gas configuration of an atom consists of the elemental symbol of the last noble gas prior to that atom, followed by the configuration of the remaining electrons. So for sodium, we make the substitution of [Ne] for the 1s22s22p6 part of the configuration. Sodium’s noble gas configuration becomes [Ne]3s1.
What do mg Ca and Sr have in common?
They have the same number of valence electrons. What do the elements Mg, Ca, and Sr have in common? Which of these is the smallest particle to retain the properties of an element? Both are made of atoms.
Which of the following configuration corresponds to Palladium?
46Pd:1s2,2s2,2p6,3s2,3p6,4s2,3d10,4p6,5s0,4d10 .
What element has the electron configuration 1s 2 2s 2 2p 6 3s 2 3p 2?
The electron configuration 1s22s22p63s23p2 is the element Silicon.
What element is best represented by the electron configuration 1s 2 2s 2 2p 4?
For example: Looking at the periodic table, you can see that Oxygen has 8 electrons. Based on the order of fill above, these 8 electrons would fill in the following order 1s, 2s and then 2p. So Oxygen’s electron configuration would be O 1s22s22p4.
What element is 1s2 2s2 2p6 3s2 3p6 4s2 3d1?
Electron Configuration Matching Game
| A | B |
|---|---|
| 1s2 2s2 2p6 3s2 3p6 4s2 3d8 | Ni |
| 1s2 2s2 2p6 3s2 3p2 | Si |
| 1s2 2s2 2p6 3s1 | Na |
| 1s2 2s2 2p6 3s2 3p6 4s2 3d1 | Sc |
What are the properties of alkali and alkaline earth metals?
Alkaline earths have low electron affinities and low electronegativities. As with the alkali metals, the properties depend on the ease with which electrons are lost. The alkaline earths have two electrons in the outer shell. They have smaller atomic radii than the alkali metals.
What are the main characteristics of alkali metals?
General Characteristics of Alkali Metals
- Alkali metals are soft metals due to weak metallic bonding. …
- They have low melting and boiling points.
- They are highly reactive metals. …
- The energy required to remove an electron from the outermost shell is known as Ionization Energy. …
- Sodium is the most abundant metal.
Are alkaline earth metals malleable?
Alkaline Earth Metal Properties
All of the alkaline earths are shiny, silver-colored metals at ordinary temperatures and pressure. These metals are malleable and ductile. The alkaline earth metals tend to be soft, with relatively low densities, melting points, and boiling points for metals.