true
False - Apex
Group number describes the number of valence electrons. It helps in estimating chemical properties of that element.For example-group-1 elements have 1 valence electronThe group number of an element is equal to the number of valence electrons. The number of valence electrons is responsible for the chemical properties. So the chemical properties of the element can be determined by the group number.
This is rightThe outermost electrons account for many of the physical and chemical properties of elements.
Valence electrons are very important for the chemical properties of chemical elements; but all electrons have identical sizes.
they are responsible for eletronegativity, ionic/covalent bonding, and it's basic properties ie: melting point for metals
Chemical properties of an element determine by the number of electron
Valence electrons are responsible for chemical boding.
Group number describes the number of valence electrons. It helps in estimating chemical properties of that element.For example-group-1 elements have 1 valence electronThe group number of an element is equal to the number of valence electrons. The number of valence electrons is responsible for the chemical properties. So the chemical properties of the element can be determined by the group number.
This is rightThe outermost electrons account for many of the physical and chemical properties of elements.
Valence electrons are very important for the chemical properties of chemical elements; but all electrons have identical sizes.
they are responsible for eletronegativity, ionic/covalent bonding, and it's basic properties ie: melting point for metals
Elements in a group have the same number of valence electrons and hence they have similar chemical and physical properties.
Chemical properties of an element determine by the number of electron
Group 1 have one valence electron. The elements in Group 2 have two. The elements in Group 17 have seven valence electrons, and Group 18 elements have eight. Because the valence electrons within a family are the same, the elements in that group have similar properties.
Elements in the same group have similar properties as they have the same number of valence electrons.
those elements are in the same 'family' or 'group'
They have the same number of valence electrons and so have similar reactivity and similar properties.
Elements in the same group have similar properties because they have the same number of electrons in their outermost shell.