Table of Contents
- 1 Why are elements so different from each other?
- 2 Why does a compound have different properties to the elements it is made of?
- 3 What are elements How are they different from each other?
- 4 Can compounds have different properties than their elements example?
- 5 How do elements get their properties?
- 6 How do the properties of elements compare to the properties of the compounds they form?
Why are elements so different from each other?
The number of protons in an atom is the defining feature of an atom. It’s what makes one element different from another. The number of protons in an atom is called its atomic number. All the elements in the universe are arranged according to their atomic number in the periodic table.
Why does a compound have different properties to the elements it is made of?
The properties of compounds are different from the properties of the elements that form them—sometimes very different. That’s because elements in a compound combine and become an entirely different substance with its own unique properties. Do you put salt on your food? Table salt is the compound sodium chloride.
Why are properties of elements different in the same group?
(a) (i) All the elements of a group have similar chemical properties because they have same no. of valence electrons in their outermost shell. (ii) All the elements of a period have different chemical properties because they have different no. of valence electrons in their atoms.
What is properties of elements?
Properties of an element are sometimes classed as either chemical or physical. Some properties of an element can be observed only in a collection of atoms or molecules of the element. These properties include color, density, melting point, boiling point, and thermal and electrical conductivity.
What are elements How are they different from each other?
Comparison chart
| Element | |
|---|---|
| Composition | Elements contain only one type of atom. Each atom has the same atomic number i.e., the same number of protons in their nucleus. |
| Ability to break down | Elements cannot be broken down into simpler substances by chemical reactions. |
| Representation | An element is represented using symbols. |
Can compounds have different properties than their elements example?
A compound has different properties from the elements that form it. For example, the compound sugar contains the elements oxygen, carbon, and hydrogen. For example, you know that water is made up of 2 hydrogen atoms and 1 oxygen atom. Every molecule of water is made up of exactly 2 hydrogen atoms and 1 oxygen atom.
Why do elements in the same group show similar properties but the elements in different groups show different properties?
Elements of a particular group have similar electronic configurations and the same number of valence electrons in their atoms. Hence, all the elements belonging to a certain group show similar properties. Different groups have different valencies. Therefore, elements in different groups show different properties.
Why do elements in the same family have similar properties?
Because the members of each group in the main group elements has the same number of valence electrons, there are similar properties and similar trends in chemical reactions found in the group.
How do elements get their properties?
The chemical properties of an element are due to the distribution of electrons around the atom’s nucleus, particularly the outer, or valence, electrons; it is these electrons that are involved in chemical reactions. Some properties of an element can be observed only in a collection of atoms or molecules of the element.
How do the properties of elements compare to the properties of the compounds they form?
How do the properties of a compound compare to the properties of the elements that formed it? The elements that form the compound don’t compare because it doesn’t matter about the elements when they are combined. The elements that formed it together is completely different than the outcome (compound).