Why do compounds have properties that are different from the elements of which they are made?
Table of Contents
- 1 Why do compounds have properties that are different from the elements of which they are made?
- 2 How are elements and compounds similar different?
- 3 Why do all the elements of the same group have similar properties?
- 4 Why are elements and compounds represented differently in chemistry?
- 5 How do the properties of compounds compare to the properties of the elements from which the compounds are composed?
- 6 How do elements and compounds react?
- 7 Why do the physical and chemical properties of a substance change?
Why do compounds have properties that are different from the elements of which they are made?
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 do elements exhibit properties?
Each element within a group has similar physical or chemical properties because of its atom’s outermost electron shell (most chemical properties are dominated by the orbital location of the outermost electron).
How are elements and compounds similar different?
Elements and compounds are similar in that they are both made of atoms and in some cases molecules.
How does an element differ from a compound?
An element is a material that consists of a single type of atom. Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.
Why do all the elements of the same group have similar properties?
a) Elements in the same group have similar properties because they have the same number of valence electrons in their outermost shell. Element with atomic number 12 will have similar physical and chemical properties as element with atomic numbers 20 and 38. Because the number of electrons in outermost shell are same.
Why do elements in a group show similar properties?
A vertical column in the periodic table of elements is called group. So, we can say that elements in a group have the same physical and chemical properties because their atoms have the same number of valence electrons or same valence shell electronic configuration.
Why are elements and compounds represented differently in chemistry?
Elements contain only one type of atom. Each atom has the same atomic number i.e., the same number of protons in their nucleus. A compound is represented using its chemical formula that represents the symbols of its constituent elements and the number of atoms of each element in one molecule of the compound.
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).
How do the properties of compounds compare to the properties of the elements from which the compounds are composed?
Terms in this set (38) The properties of compounds are generally very different from the properties of the elements that compose them. A chemical bond is how atoms are held together to form a compound, they are the result of an interaction between the charged particles – electrons and protons – that compose the atoms.
How are the physical properties of compounds different from those of elements?
The physical properties of an compound are often quite different to the physical properties of the elements that made them up. This is because the shape and composition of the molecule has changed, which changes its physical properties. The…
How do elements and compounds react?
Elements and compounds are pure substances that have characteristic physical and chemical properties. When substances react, they do in such a way as to satisfy the chemical potential, i.e. to move thermodynamically downhill, with respect to enthalpy AND entropy (which requirement also accounts for physical processes such as diffusion).
Why do different elements have different flame colours?
Different elements have different flame colours because their electrons have different allowed energy levels. The Bohr model says that electrons exist only at certain allowed energy levels.
Why do the physical and chemical properties of a substance change?
This is because the shape and composition of the molecule has changed, which changes its physical properties. The chemical properties change because what determines a substance’s chemical property is how many electrons it has.