Aluminum and nitrogen combines together through ionic bonding to form aluminum nitride AlN. Thus, the type of bonding here is ionic bond.
Ionic bonding is the strongest bond type formed between a metal and nonmetal. Metals are electrons rich and can easily lose electrons to form their higher oxidation states.
Non-metals up to group 17 are electrons deficient and they need one or more electrons to attain stability or to fulfill the octet. Metals donate electrons to non-metals forming ionic bonds.
Eve though aluminum is placed with non-metals it shows metallic properties which is classified into 13th group thus, having 3 valence electrons. Nitrogen is 15th group element with 5 valence electrons and thus, need 3 more electrons to attain octet.
Therefore, Al donates it 3 valence electrons to nitrogen forms an ionic bond between them and hence, form the ionic compound aluminum nitride AlN.
To find more on aluminum nitride, refer here:
#SPJ6
Explanation:
Matter is defined as the substance that has mass and occupies space.
This means every matter will have mass and every matter will also have volume as it occupies space.
Every matter is made up of number of atoms as these atoms are the small sub-units that combine together and constitute a matter.
Hence, the statement atoms and compounds are made out of matter is not true.
As density is mass present in per unit volume. Therefore, every matter will vary in density.
Thus, we can conclude that characteristics that define matter are as follows.
Answer:
The answer to your question is: a, b and c
Explanation:
A.) Matter has mass. this option is correct, matter is formed by mass.
B.)Matter has volume (takes up space). this option is correct, matter takes up space.
C.)Atoms and compounds are made out of matter. This option is correct, all atomsand compounds are made out of matter.
D.) All matter has the same density. This optio is wrong, matter of different elements or compounds have different density.
Answer : The procedure to separate the mixture of sugar, black pepper and pebbles would require physical methods.
First step is to pass the mixture through a grid that traps the pebbles in it and allows the passage of black pepper and sugar from it or alternatively, physically hand-picking up the pebbles can also be done.
Next step is to add water to the mixture to the sugar and black pepper, stir this solution until all the sugar dissolves in the water. Then pass this solution from a filter paper and collect the filtrate in a beaker.
The residue would contain the black pepper on it, it can be dried after separation.
To obtain the sugar which is dissolved in water, one can evaporate the water in it and get the sugar at the bottom of the beaker.