Why are nitrogen and phosphorus both in group 5?

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Presentation transcript:

Why are nitrogen and phosphorus both in group 5? What is an element? How are electrons arranged in an atom?. What sub-atomic particle is the same in all atoms of a particular element? C1.1 Fundamental Ideas In Chemistry Where do we find all the elements? Complete the table to show the properties of the sub-atomic particles. What is the overall charge on an atom? Explain your answer. Sub-atomic particle Relative charge Relative mass Proton 1 1/1840 Complete the equation Sodium + Oxygen Label the diagram to show the structure of an atom. Describe how a metal and non-metal react to form an ionic bond. Write the chemical symbols for the following elements: Oxygen Sodium Fluorine Nitrogen Complete the diagram to show the electronic structure of magnesium. Why are the noble gases unreactive? . Give the electronic configuration of the following elements. Silicon Helium Lithium Argon Why are the alkali metals so reactive? What type of boding occurs between non-metals? What do the following tell you? Atomic number: Mass number: Complete the table below. Balance the equation below and explain what it shows. What happens to mass in a chemical reaction? Element Number of Protons Neutrons Electrons Potassium Hydrogen 30 Li + O2 Li2O Complete the equation Lithium + Water

Why are nitrogen and phosphorus both in group 5? They both have five electrons in their highest energy level What is an element? Substanve made of only one type of atom. How are electrons arranged in an atom?. In different energy levels. What sub-atomic particle is the same in all atoms of a particular element? Protons C1.1 Fundamental Ideas In Chemistry Where do we find all the elements? In the periodic table Complete the table to show the properties of the sub-atomic particles. What is the overall charge on an atom? Explain your answer. Neutral The number of electrons, which are negtive, is equal to the number of protons, which are positive Sub-atomic particle Relative charge Relative mass Proton +1 1 Neutron Electron -1 1/1840 Complete the equation Sodium + Oxygen Sodium oxide Label the diagram to show the structure of an atom. Describe how a metal and non-metal react to form an ionic bond. Metal loses electrons, and becomes a positive ion Non-metal gains electrons and becomes of positive ion Write the chemical symbols for the following elements: Oxygen O Sodium Na Fluorine F Nitrogen N electron neutron Complete the diagram to show the electronic structure of magnesium. Why are the noble gases unreactive? They have a full outer shell of electrons. proton nucleus Give the electronic configuration of the following elements. Silicon 2, 8, 4 Helium 2 Lithium 2, 1 Argon 2, 8, 8 Why are the alkali metals so reactive? They only have one electron in their outer energy level. What type of boding occurs between non-metals? Covalent What do the following tell you? Atomic number: number of protons in an atom Mass number: number of protons and neutrons in an atom Complete the table below. Balance the equation below and explain what it shows. What happens to mass in a chemical reaction? It is conserved. Element Number of Protons Neutrons Electrons Potassium 19 21 Hydrogen 1 Zinc 30 35 2Li + O2 Li2O 2 atoms of lithium React with one molecule of oxygen To form 1 molecule of lithium oxide Complete the equation Lithium + Water Lithium+ Hydrogen Hydroxide