Author: Anonymous

Which neutral atom has the following electron configuration?  1s22s22p63s23p1

6.1 Which point on the graph indicates the boiling point of water? Select only the appropriate letter. (1)

Calculate the wavelength a photon of radiation with a frequency 1.119 x 108 Hz.

The maximum number of electrons in the d subshell is 10.

The chloride ion, Cl-, has the same electron configuration of which element?

Are the following statements true or false: 2.1 Condensation is when energy is added and a gas changes into a liquid (1)

1.7 The process in which the atoms in molecules are rearranged to form new molecules (1)

5.8. Name the three phases of the state of matter? (3)   [1] [2] [3]  

3.1. A sub atomic particle with no charge [1] 3.2 Carbon dioxide [2] 3.3 A substance made up of two or more types of atoms. [3] 3.4 Hydrogen [4] 3.5 Substance with definite physical and chemical properties and a fixed composition [5]

7.3  Using the correct formula, calculate the density of 175 cm3 water with the mass of 175,70 g  (Show all your calculations and round off to 2 decimal places) (4)