impact our understanding of the universe?
Answer:Atomic theory established that all matter is made of tiny particles, a discovery that led to amazing scientific breakthroughs in areas from modern chemistry to nuclear energy.
Explanation:Atomic theory is the scientific theory that matter is composed of particles called atoms. Atomic theory traces its origins to an ancient philosophical tradition known as atomism.
the answer is 5.6 !!
B. The more hydrogen in the molecule, the stronger the force.
C. The more polar the molecules, the stronger the force.
D. The larger the atomic radius, the stronger the force.
The more polar the molecules, the stronger the force. Hence, option C is correct.
Dipole-Dipole forces are the interaction between molecules of the permanent dipole. It occurs between the partially charged positive molecules and partially charged negative molecules.
Polar molecules align themselves so that the δ– end of one molecule is near the δ+ ends of other molecules.
The molecules are thus attracted to each other. Dipole-dipole forces exist between polar molecules.
The greater the polarity, the stronger the dipole-dipole forces.
Hence, option C is correct.
Learn more about dipole-dipole force here:
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sodium, nickel, carbon, or oxygen
Answer : Option A) Sodium
Explanation : Sodium is the element which is most reactive tin the given options.
Sodium has the atomic number as 11, which is distributed in the atomic shells as 2-8-1.
So, it is clear that the outermost valence shell contains only one electron in sodium. To give away one electron and attain the octet state is easy for sodium. If it donates the electron it becomes a cation which is very reactive, as it gets a positive charge on itself.
Compared to the valency of the other atoms given here, Nickel has 2 valence electrons so it will be less reactive than Sodium.
Carbon has 4 valence electrons which is less than sodium and oxygen needs 2 electrons to be an octet which is also less.