What are the three groups into which all the elements can be divided ? Name two elements belonging to each group.
All the elements can be divided into the following three groups:
- Metals: Examples: Gold and Iron
- Non-metals: Examples: Carbon and Oxygen
- Metalloids: Examples: Silicon and Boron
Related Articles
- All the animals can be divided into three groups on the basis of their eating habits. Name the three groups.
- Three-Phase Transformer Vector Groups – How are the Vector Groups Divided?
- There is a large group of materials P which can be divided into three groups Q, R and S on the basis of their properties. The substances belonging to group Q can be solids, liquids or gases. The solids belonging to group Q are usually electrical insulators. Most of the substances of group R are solids which are good conductors of electricity. The substances belonging to group S are neither insulators like Q not good conductors like R. The properties of S are intermediate between those of Q and R.(a) What could the group of materials P be?(b) Name the substances Q. Give two examples of such substances.(c) Name the substances R. Write two examples of such substances.(d) Name the substances S. Give two examples of such substances.(e) Out of Q, R and S, which substances are malleable and ductile?
- (a) The human brain can be broadly divided into three regions. Name these three regions.(b) What is cranium? What is its function?
- The atomic numbers of the three elements X, Y and Z are 2, 6 and 10 respectively.(i) Which two elements belong to the same group? (ii) Which two elements belong to the same period? Give reasons for your choice.
- (a) What is meant by (i) a group, and (ii) a period, in a periodic table?(b) How many periods and groups are there in the long form of periodic table? (c) Give two examples each of (i) group 1 elements (ii) group 17 elements (iii) group 18 elements.
- State whether the following statement are true or false:(a) Newlands divided the elements into horizontal rows of eight element each. (b) According to Mendeleev’s periodic law, the properties of elements are a periodic function of their atomic numbers. (c) The elements in a group have consecutive atomic numbers.
- Rewrite the following statements after correction, if necessary:(a) Groups have elements with consecutive atomic numbers. (b) Periods are the horizontal rows of elements. (c) Isotopes are the elements of the same group.
- Program to find the product of three elements when all are unique in Python
- (a) Name three elements that have a single electron in their outermost shells.(b) Name two elements that have two electrons in their outermost shells. (c) Name three elements with completely filled outermost shells.
- Name the property due to which metals can be beaten into thin sheets.
- The elements A, B and C belong to groups 1, 14 and 17 respectively of the periodic table.(a) Which two elements will form a covalent compound?(b) Which two elements will form an ionic compound?
- (a) Explain why, the first period of the modern periodic table has only two elements whereas second period has eight elements(b) Why do elements in the same group show similar properties but the elements in different groups show different properties?(c) For each of the following triads, name the element with the characteristics specified below:
- Find all elements in array which have at-least two greater elements in C++
- Is there a DOM function which deletes all elements between two elements in JavaScript?
Kickstart Your Career
Get certified by completing the course
Get Started