Complete the following diagrams in Fig. by drawing the reflected ray for the incident rays A and B.

Complete the following diagrams in Fig. by drawing the reflected ray for the incident rays 1 and 2.

Copy and complete the following ray diagram to obtain the image of the object AB kept in front of the concave mirror.

Draw orbital diagrams for atoms with the following electronic configurations. 1s^(2) 2s^(2) 2p^(5)

Oxygen atom in water has two 'lone pair of electrons'. Explain the meaning of the term in italics. With the help of an electron dot diagram show the formation of hydronium ion and ammonium ion from a water molecule and an ammonia molecule respectively.

Complete the following flow chart related to the structure of ammonium ion. N(7) to _____, _____ (electronic configuration) H(1) to _____ (electronic configuration) Nitrogen needs __________ electrons to complete its octet and hydrogen needs _________ electron to complete its duplet. Ammonia possesses one __________ pair of electrons and three __________ pairs of electrons. Thus the pair of electron is used in making a _________ with proton. Such a bond is known as ________ bond.

Complete the following rangoli pattern such that the two dotted lines become the lines of symmetry. .

Complete the following figures so that the final figures has the two dotted lines as the two lines of symmetry. .

Consider the following six electronic configurations (remaining inner orbitals are completely filled) and mark the incorrect option.

Using the information above, complete the following: Metal atoms tend to have a maximum of ...... electrons in the outermost energy level.