The present study reports the use of translated versions of a diagnostic instrument to elicit the conceptions of bonding in NaCl (commonly used as the teaching example of an ionic compound) from two samples of students setting out on university courses in Greece and Turkey. The study reports ...
Related to Ionic bonding:Chemical bonding,Metallic bonding ionic bond In sodium chloride, a sodium atom (Na) donates an electron to a chlorine atom (Cl), forming an ionic bond. ionic bond n. A chemical bond between two ions with opposite charges, characteristic of salts. Also calledelectrova...
A salt such assodiumchloride (NaCl) is a good example of a molecule withionic bonding(seeFigure 3-3). The atomic number of the element sodium (Na) is 11, meaning that a sodium atom possesses eleven protons and eleven electrons. Its electronic configuration is 1s22s22p63s1. In this state...
The C-H bond with a difference of 0.35 will be covalent, while NaCl bonding at 2.23 will be ionic. HCl bonding at 0.96 will be polar covalent, and LiI bonding at 1.68 will be 50/50 ionic/covalent. The largest electronegativity difference is 3.19, between cesium (0.79) and fluorine (3....
Ionic BondingSlide 2CA StandardsStudents know atoms combine to form molecules by sharing electrons to form covalent or metallic bonds or by exchanging electrons to form ionic bonds.Students know salt crystals, such as NaCl, are repeating patterns of positive and negative ions held together by ...
The compounds can also be formed by ionic bonding. The ionic bonding is formed by a metal that can donate electrons and a non-metal that can accept electrons coming from metal. So, in ionic bonding, electrostatic attraction occurs between cation and anion....
For example, NaCl is a binary ionic compound. We can think about the formation of such compounds in terms of the periodic properties of the elements. Many metallic elements have relatively low ionization potentials and lose electrons easily. These elements lie to the left in a period or near ...
charged cation and the negatively charged anion －Non-directional because the attraction is in all directions －Example: NaCl Covalent bond －formed by electron sharing电子分享 beeen o non-metallic atoms. －The shared electrons are located in beeen the nuclei of the bonding atoms. ...
In ionic bonding, atoms either take or give up electrons to form a compound. The atoms in the compound become either positively charged or negatively charged ions. A positive ion loses electrons while a negative ion gains electrons. Whether an atom will gain or lose electrons depends on its ...
Drawing Hints Put the single atom in the middle of the dot diagram Hydrogen is never in the middle of the dot diagram When redrawing, we use dashes to represent 2 shared electrons Remember to redraw the nonbonding electrons Sample Problems Draw CH4 PCl3 SH2 HCl CO2 BH3 ...