1. Use your periodic table and notes to complete this assignment. 2. Identify the elements in each formula.
3. Categorize them as either "metals" or "nonmetals".
4. Determine the type of bond each compound has.
Formula
Metals
Nonmetals
Type of Bond
1. HE
Tetravalent
transition
Hydrogen/Fluorine
Covalent
2. NaCl
Sodium
Chlorine
Tonic
3. C4H10
covalent
4 ALO
INTL

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?