Statement 3, 5 and 6 are true statements regarding Lennard-Jones potential diagrams
What is lennard- jones potential diagrams
- It describes potential energy of interaction between two non-bonding atoms or molecules based on their distance of separation.
- It illustrates the relationship between potential energy of a molecule as the distance between the two nuclei changes.
Statement 3 ,5 and 6 are correct statements
- When attractive forces are greater than repulsive forces, the two nuclei will continue to come closer.
- When attractive forces are smaller than repulsive forces, the two nuclei will continue to go farther.
- Once a balance is found between attractive and repulsive forces, an equilibrium distance called bond length is achieved.
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Answer:
The number of valence electrons increases from top to bottom within each group.
Explanation:
The valence electrons are the outermost shell electrons.
Therefore, the number of valence electrons does not increase from top to bottom within each of the group.
Down a group, the number of valence electrons remains the same.
For group I elements, the number of electrons is 1.
The group is the vertical arrangement of elements.
From left to right across a period, the number of valence electrons increases because you move from group to group.
So, the equation NaCl is a 1:1 mol ratio, so we need to convert grams of Na to mols of Na. Then we take that mols of Na, and then since it is a 1:1 ratio, it is the same number of mols of Cl. Then, we take the mols of Cl and multiply it by the mol ratio.
The equation looks as the following:
So, 53.99260 is the answer, but rounding to sig figs, we round to 3 sig figs (since 35.0 has only 3 sig figs)
54.0g Cl
Correct Answer: Option B i.e. 235 92U + 1 0n→ 140 55Cs + 94 37Rb + 2 (1 0n)
Reason:
Nuclear fission<span> is either a nuclear </span>reaction<span> or a radioactive decay process in which the nucleus of a heavy atom splits into smaller atoms. During this process, large amount of heat is given out.
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This condition of nuclear fission reaction is satisfied only by option B.
Rest all the available options are example of nuclear transmutation reactions.
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