Ions worksheet 2 done
.pdf
School
Unicom College of Business Studies, Rustam, Mardam**We aren't endorsed by this school
Course
DDD 126
Subject
Chemistry
Date
Dec 17, 2024
Pages
1
Uploaded by BailiffFang15554
Name:___________________ Per:______ Ions WorksheetElement # Valence Electrons # Electrons to gain # Electrons to lose Ion Formed/ name Li 1 None 1 Li +1/ cation N 5 3 None N –3 / anion O Ca Br S Cl K Mg Be Questions: 1.If Li loses an electron to another atom, why is it written Li + 1 (with a +1)? 2.If N gains 3 electrons from other atoms, why is it written N-3(with a -3)? 3. a. What do you think happens to atomic radius size of a cation & why? b. an anion & why? Name:___________________ Per:______ Ions WorksheetElement # Valence Electrons # Electrons to gain # Electrons to lose Ion Formed/ name Li 1 None 1 Li +1/ cation N 5 3 None N –3 / anion O Ca Br S Cl K Mg Be Questions: 1.If Li loses an electron to another atom, why does it have a have a +1 charge? 2.If N gains 3 electrons from other atoms, why does it have a -3 charge? 3. a. What do you think happens to atomic radius size of a cation & why? b. an anion & why? 8 2 None O-2 / anion20 None2 Ca+2/ cation35 1 None Br-1/ anion16 2 None S-2/ anion17 1 None Cl-1/anion19 None 1 K+1/ cation12 None 2 Mg+2/ cation4 None2 Be+2/ cationBecause Li lost a negative (e-) and now more +protons.Electrons are negative and N now has more electrons than protons.The atomic radius of a cation atomic radius will get smaller. The anion will expand.Li now has more protons than electrons. Protons are positive.N now has more electrons than protons making it negative. Electrons are negative.8 2 None O-2 / anion20 None2 Ca+2/ cation35 1 None Br-1/ anion16 2 None S-2/ anion17 1 None Cl-1/anion19 None 1 K+1/ cation12 None 2 Mg+2/ cation4 None2 Be+2/ cationThe atomic radius of a cation atomic radius will get smaller. The anion will expand.
