How many valence does group 17 have?
seven valence electrons
Because the halogen elements have seven valence electrons, they only require one additional electron to form a full octet. This characteristic makes them more reactive than other non-metal groups.
How many valence electrons does potassium?
Explanation: Just like sodium potassium has one valence electron and is highly reactive. (it is monovalent).
What is the valence electron of 17?
7 electrons
The atomic number of chlorine is 17. Hence it has got 7 electrons in its outermost shell. There are 7 valence electrons in the chlorine atom.
What group has 17 valence electrons?
The Halogens
The halogens are located on the left of the noble gases on the periodic table.
What is the 17 element?
Tim Harrison was telling the tale of Element number 17, and that’s chlorine.
What is valence electron of potassium 19?
1
Atomic number of potassium atom is 19. Its electronic configuration is 2,8,8,1 so, its valency is 1.
What number of valence electrons are in an element with 17 protons?
A: An atom of a group 17 element such as chlorine has seven valence electrons.
What is the element with atomic number 17?
chlorine
Tim Harrison was telling the tale of Element number 17, and that’s chlorine….
| Discovery date | 1774 |
|---|---|
| Origin of the name | The name is derived from the Greek ‘chloros’, meaning greenish yellow. |
| Allotropes | Cl2 |
Which element has an atomic number of 17?
Cl Chlorine
The Elements, sorted by Atomic Number
| Atomic Number | Symbol | Name |
|---|---|---|
| 17 | Cl | Chlorine |
| 18 | Ar | Argon |
| 19 | K | Potassium |
| 20 | Ca | Calcium |
What is electron configuration of atomic number 17?
– Chlorine has the atomic number 17. – It belongs to group 17 in the periodic table. – The electronic configuration of chlorine is 1s22s22p63s23p5.
What is the atomic number of potassium?
19Potassium / Atomic number
What are the properties of group 17?
Physical properties of Group 17 elements
| Element | Fluorine | Chlorine |
|---|---|---|
| Atomic radius (nm) | 0.071 | 0.099 |
| Density (g cm-1) | 0.0017 | 0.0032 |
| Melting point (°C) | -220 | -101 |
| Boiling point (°C) | -188 | -35 |
What are the properties of Group 17?
Which group does the element with atomic number 17 belongs to *?
Chlorine (Cl) exists as a yellow green gas with a pungent smell. It has the atomic number 17 in the periodic table and belongs in Group 17, the Halogens.
What makes up Group 17 of the periodic table?
The halogen elements are the six elements in Group 17 of the periodic table. Group 17 occupies the second column from the right in the periodic table and contains fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).