2Q Lesson 5: Concepts of Ions AY2024-2025 PDF

Instruction: Complete the table below Number of Number of Element Atomic number protons electrons S 2- 18 Ar...

Instruction: Complete the table below Number of Number of Element Atomic number protons electrons S 2- 18 Ar 18 Ca 2+ 20 Instruction: Complete the table below Number of Number of Element Atomic number protons electrons S 2- 16 16 18 Ar 18 18 18 Ca 2+ 20 20 18 When does an atom become electronically charged? Concepts of Ions 2Q Lesson 5 Learning Targets At the end of this lesson, I can explain the formation of ions as either the loss or gain of electrons. determine the charge of ions formed by different elements. appreciate the role of ions in forming salts.  RULES IN CONSTRUCTING N LEDS OF AN ATOM 1. Use the element's symbol to represent the nucleus and inner shells. O 2. Place dots around the symbol to represent the valence electrons. 3. Distribute dots Mg before pairing. Instruction: Complete the table below. Atomic Group in the Valence Element Electron configuration periodic table LEDS number electron N O Mg Instruction: Complete the table below. Atomic Group in the Valence Element Electron configuration periodic table LEDS number electron N 7 1s22s22p3 5 5 N O 8 1s22s22p4 6 6 O Mg 12 1s22s22p62s2 2 2 Mg When does an atom become electronically charged? Nitrogen (1s22s22p3) 3- N N N How many lone pair/s? Describe the valence How will nitrogen atom 1 lone pair shell of nitrogen behave? a. Full valence shell a. Gain electrons How many bonding b. Nearly full valence b. Lose electrons electron/s? shell 3 bonding electrons c. Nearly empty valence shell Oxygen (1s22s22p4) 2- O O O How many lone pair/s? Describe the valence How will nitrogen atom 2 lone pair shell of nitrogen behave? a. Full valence shell a. Gain electrons How many bonding b. Nearly full valence b. Lose electrons electron/s? shell 2 bonding electrons c. Nearly empty valence shell Magnesium (1s22s22p63s2) 2+ Mg Mg Mg How many lone pair/s? Describe the valence How will nitrogen atom 0 lone pair shell of nitrogen behave? a. Full valence shell a. Gain electrons How many bonding b. Nearly full valence b. Lose electrons electron/s? shell 2 bonding electrons c. Nearly empty valence shell  Valence Shell Electron Pair N O Mg Repulsion (VSEPR) theory placing electron pairs as far apart as possible, VSEPR predicts the general N O Mg shape of molecules.  Anion Cation 2- 3- N O Mg 2+  IONS Ions – an atom or group of atom either loses an electron or gains an extra electron. Anion Cation An atom gaining an An atom losing an electron becomes electron becomes negatively charged. positively charged.  Cation IONS Anion metals tend to lose electrons non-metals (except noble to achieve a stable electron gases) tend to gain electrons to configuration. achieve a stable electron configuration. Instruction: Complete the table below Will the atom Metal or non- How many electrons will be Element form a cation or metal gained or lose? anion? S K Br Instruction: Complete the table below Will the atom Metal or non- How many electrons will be Element form a cation or metal gained or lose? anion? S Non-metal Anion Gain 2 electrons K Metal Cation Lose 1 electrons Br Non-metal anion Gain 1 electron Use the following key terms in describing the structure of a sodium chloride molecule: a. Valence electron of sodium and chlorine b. Atom _____ gained __ electron/s c. Atom _____ lose __ electron/s d. Atom _____ is a cation e. Atom _____ is an anion Reflection "In the dance of atoms, ions are the rhythm that binds and shapes the world around us."  Self-check: How does the Benedictine hallmark of “HOSPITALITY” connect to our lesson? Must realize: Just as ions unite to form something stable and beautiful, hospitality involves inviting others into our lives and communities, helping to build a harmonious environment that "binds and shapes" the social fabric around us. MASTERY CHECK IN GENYO 2Q MC Lesson 5: Concepts of Ions Password: 2QL5MC1 I can explain the formation of ions as either the loss or gain of electrons. I can determine the charge 1 out of 3 LT attained of ions formed by different elements. 2 out of 3 LT attained I can appreciate the role of ions in forming salts. All LT attained