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Target 1.1: Atom anatomy 1. 2. 3. What part of the atom has no charge? What part of the atom has a positive charge? What part of the atom has a negative charge? 4. How many electrons can the first orbit hold? 1. Target 1.3: Draw Bohr Models for elements I- .-How mony protons does fhe qtom havE? the otom hove? 2. mony neutrons does 3, mcny electrons does the otom hove? 4. Whct is th¿ atomic numb¿r of th¿ qtom? 5. What is the moss rumber of the otom? 20 on the periodic table REMEMBER: Until now, all atoms have been electrically neutral with equal numbers of negatively charged electrons and positively charged protons. However, atoms of an element often have different amounts of electrons. However, they can NOT have different numbers of protons. Protons are unique to a specific atom and element. Eight protons is oxygen and oxygen is eight protons; nothing else. But what happens when an atom gains or loses an electron? An ion is formed. An fQjl is simply an atom with an electrical charge; it has unequal numbers of negatively charged electrons and positively charged protons. ff !t has more negatively charged electrons than positively charged protons it is a negatively charged àrrtffi. lf il has more positively charged protons than negatively charged electrons it is a positively charged deïlthîr. What atom is this? oxygen Atomic Symbol? O What atom is Atomic this? Symbol? oxygen 02- What is the charge? neutral What is the charge? 2- Circle one: cation, anion, neither? Circle one: cation, anion, neither? 9P 10N 4P What atom is this? What atom is this? What is the charge? What is the charge? Circle one: cation, anion, neither? Circle one: Çation, anion, neither? 5N Draw the Bohr model for the indicated atom or ¡on All atoms of the same type have the SAME number of protons Acha e indicates a different number of electrons . . L¡ F L¡* Mg (the + means you have one less electron than proton) F Mg'* (the 2+ means you have two less electrons than protons) Target 1.1 : Atom anatomy 1. What part of the atom has no charge? Nanlto*' 2. What part of the atom has a positive charge ? Yto\o"t 3. What part of the atom has a negative charge? ?\eclron 4. How many electrons can the first orbit hold? {wo 1. 2. b many protons does the otorn have? (- mcny.neutrons does the stom hove? mcny electrons does the otor.n hove? 3. 4. 5. b q is the otomic number of the otom? Whot is the nross number of the otom? i Target 1 .3: Draw Bohr Models for elements 1 - 20 on the periodic table REMEMBER: Until now, all atoms have been electrically neutral with equal numbers of negatively charged electrons and positively charged protons. However, atoms of an element often have different amounts of electrons. However, they can NOT have different numbers of protons. Protons are unique to a specific atom and element. Eight protons is oxygen and oxygen is eigh! protons; nothing else. But what happens when an atom gains or toses an electron? An ion is formed. An ffi is simply an atom with an electrical charge; it has unequal numbers of negatively charged electrons and positively charged protons. lf it has more negatively charged electrons than positively charged protons it is a negatively charged ffi |Ljl.hnr more positively charged protons than negatively charged elecirons it is a positively charsed iffiä .D What atom is Atomic this? Symbol? oxygen O What atom is Atomic this? oxygen Symbol? 02' What is the charge? neutral What is the charge? 2- Circle one: cation, anion, neither? Circle one: cation, anion, neither? 9P 4P 10N 5N What atom is this? What is the Ç charge? Ç Øe What atom is this? - What is the charge? Circle one: cation, Circle o þtn nion, neither? Draw the Bohr model for the indicated atom or ¡on All atoms of the same type have the SAME number of protons Ac indicates a different number of electrons . . L¡ L¡* (the + means you have one less electron than proton) F \\ ,*¡ \ ,/ tl F Mg Mg'* (the 2+ means you have twó less electrons than protons)