Table of Contents
- 1 How are the halogen family and noble gases different?
- 2 What do halogen elements have in common?
- 3 What are the similarities in the properties of element in halogen family?
- 4 Why are the halogens grouped together?
- 5 Why do halogens have the same properties as noble gases?
- 6 What is the difference between element families and Element Groups?
How are the halogen family and noble gases different?
Explanation: Halogens are very reactive because they have seven valence electrons and need one more to have eight valence electrons (an octet). The noble gases have filled valence shells as they occur in nature. Helium has a duet of valence electrons, and the rest of the noble gases have an octet.
How are halogens different from other elements?
Halogens are nonmetals in group 17 (or VII) of the periodic table. Down the group, atom size increases. As a diatomic molecule, fluorine has the weakest bond due to repulsion between electrons of the small atoms. Therefore, they are highly reactive and can gain an electron through reaction with other elements.
What makes the halogen family so unique and different?
Elements in the halogen group have seven electrons in their outer shells giving them many unique properties. What elements are halogens? The halogens include the five elements fluorine, chlorine, bromine, iodine, and astatine. They make up column 17 of the periodic table.
What do halogen elements have in common?
The halogen elements have seven valence electrons in their outermost electron shell. Therefore, when these elements can receive an electron from another atom, they form very stable compounds since their outermost shell is full.
What are 3 similarities about the elements in the noble gas family?
These gases all have similar properties under standard conditions: they are all odorless, colorless, monatomic gases with very low chemical reactivity. The six noble gases that occur naturally are helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn).
How do the physical and chemical properties compare among the halogens?
Halogens display physical and chemical properties typical of nonmetals. They have relatively low melting and boiling points that increase steadily down the group. Near room temperature, the halogens span all of the physical states: Fluorine and chlorine are gases, bromine is a liquid, and iodine is a solid.
What are the similarities in the properties of element in halogen family?
They readily combine with metals to form salts. They have seven valence electrons in their outer shell. They all exist as diatomic molecules (two atoms ) when in their pure form. They are highly reactive and electronegative in nature.
What is unique about halogens?
Halogens are unique because they have seven valence electrons which makes them very reactive.
What are the similarities in the properties of elements in halogen family?
Why are the halogens grouped together?
The halogens are located on the left of the noble gases on the periodic table. 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.
What is the difference between a family of elements and elements in the same period?
The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods.
What do elements in the same group have in common?
The elements in each group have the same number of valence electrons. As a result, elements in the same group often display similar properties and reactivity.
Why do halogens have the same properties as noble gases?
As you descend the group the melting and boiling point increases as the attraction between molecules gets larger. As with the noble gases, the halogens do have similar properties but not exactly the same ones. For example, the reactivity of the element decreases as you descend the group.
What are halogen elements and what are they?
What are halogen elements? The halogen elements are the six elements in Group 17 of the periodic table. Group 17 is the second column from the right in the periodic table and contains six elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (As), and tennessine (Ts). Astatine and tennessine are radioactive elements
Why do halogens have similar melting and boiling points?
Iodine – purple. Melting points and boiling points are relatively low due to molecules been held together by weak inter-molecular forces. As you descend the group the melting and boiling point increases as the attraction between molecules gets larger. As with the noble gases, the halogens do have similar properties but not exactly the same ones.
What is the difference between element families and Element Groups?
The characteristics of the elements in these families is determined primarily by the number of electrons in the outer energy shell. Element groups, on the other hand, are collections of elements categorized according to similar properties. Because element properties are largely determined by the behavior…