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Q. How to evaluate mass number?
An isotope of an element is recognized by its mass number which is the sum of the number of protons and neutrons in the atom's nucleus.
Mass number = number of protons + number of neutrons
When texting the symbol for an isotope write the atomic number and mass number as shown in the following examples.
H atom with one proton and no electrons H atom with one proton and one neutron
This of the following substances has giant covalent structure: (1) Iodine crystal (2) Solid co 2 (3) Silica (4) White phosphorus A
surface tension assingnment with diagram
Desiccants (drying agents) can often be regenerated by heating. A desiccant that is commonly regenerated is CaSO 4 ?2H 2 O:
define borazine
define seliwanoffs test reaction
In electrochemical series moving down the table the ease of discharge at cathode increases.why? And what is ease of discharge
What are hormones? State the function of the following hormones: (a) Testosterone (b) Oxytocin
real life application
can you give me a sample problem of that topic and the answer step by step
Applications of radiometric titrations
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