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

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

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)    

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

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)

Look at the following diagram of a neutral atom and answer the questions     Right-click on the blue button below to open the diagram in a new tab:     4.1 How many particles are in the atom:  (2)   A)   Electrons     B)   Protons?