group 7 compounds

• How do group seven elements form covalent compounds?

  By reacting with non-metals
• What are group seven elements also known as?

  Halogens
• Where are group seven elements located on the periodic table?

  On the right side
• How many electrons do group seven elements have in their outer energy level?

  Seven electrons
• What type of bond is formed between two atoms in group seven molecules?

  Covalent bond
• What do group seven elements form when they react with other non-metals?

  Covalent compounds
• What is the compound formed between chlorine and hydrogen?

  Hydrogen chloride
• How can hydrogen chloride be represented?

  Using a stick to show the bond
• What type of compound is formed between iodine and phosphorus?

  Covalent compound
• What do halogens form when they react with metals?

  Ionic compounds
• What is the overall charge of a chlorine atom before it reacts?

  No overall charge
• What charge does a chloride ion have after gaining an electron?

  -1 charge
• What is an ion?

  An atom with an overall charge
• What happens to the name of a halogen when it forms an ion?

  It ends with "ide"
• What does fluorine become when it forms an ion?

  Fluoride
• What does chlorine become when it forms an ion?

  Chloride
• What are the key facts about group seven elements forming compounds?

  • Form covalent compounds with non-metals
  • Form ionic compounds with metals
  • All are non-metals
• What are the differences between covalent and ionic compounds formed by halogens?

  Covalent Compounds:

  • Formed with non-metals
  • Share electrons

  
  

  Ionic Compounds:

  • Formed with metals
  • Transfer electrons