Answer : An atom is the smallest particle into which an element can be divided and still be the same substance.
Explanation :
Atom : It is the smallest unit of an element. Every atom is composed of a nucleus.
There are three sub-atomic particles present in every atom which are electrons, protons and neutrons.
The nucleus of an atom consist of protons and neutrons.
The electrons are revolve around the nucleus and are bound to the nucleus.
Answer:
Unbalanced
Explanation:
The force applied is not the same
Given ,
Mass of sample of cobalt = 27 g
density of sample of cobalt = 9g/cm^3
We know that ,
Density = mass of sample/volume of sample
From that relation ,
We can deduce the following as
Volume = mass of sample/density of sample
Hence , required volume of sample of cobalt = 27 g /9 g/cm^3 = 3 cm^3
The volume is
Answer:
15
Explanation:
Magnesium Acetate Mg(C2H3O2)2
Number of atoms:
Carbon = 4
Hydrogen = 6
Magnesium = 1
Oxygen = 4
Total = 15