The statement which correctly describes periodic trends in ionization energy is: B. Ionization energy generally increases from bottom to top and left to right.
A Periodic table is an organized tabular array of all the chemical elements arranged in order of increasing atomic number (in rows).
Ionization energy can be defined as the minimum energy required to remove (detach) an electron from a neutral atom in its gaseous state.
Generally, ionization energy tend to increase from left to right across a period on the periodic table and from bottom to top in each group of a periodic table.
This increase is mainly because the atomic radius of chemical elements generally decreases across the periodic table, typically from alkali metals (group one elements) such as sodium, lithium and hydrogen to noble gases (group eight elements) such as neon, helium, and argon. Thus, the periodic trend for ionization energy is from left to the right and bottom to top of the periodic table.
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Answer:
Gas ⟶ liquid (condensation)
Explanation:
If the molecules are far apart, they are in the gas phase.
As the temperature drops, the molecules lose kinetic energy.
They can no longer escape the attractive forces between them and their neighbours, so they stick together and form a liquid.
The most likely change of state is gas ⟶ liquid (condensation).
Answer:
Explanation:
6CO₂ + 6 H₂O ⇄ C₆H₁₂0₆ + 6O₂
This is the chemical equation given .
1. The equation shows a __Chemical equation_______the breaking and forming of chemical bonds that leads to a change in the composition of matter.
2. In the equation, CO₂ is a___reactant_____.
3. In the equation, C₆H₁₂0₆ is a ___product________.
4. In O₂, the type of bond that holds the two oxygen atoms together is a_nonpolar_covalent bond_________.
5. In H₂O, the type of bond that holds one of the hydrogen atoms to the oxygen atom is a__polar_hydrogen bond____.
6. The number of oxygen atoms on the left side of the equation is__equal to_________ the number of oxygen atoms on the right side.
Answer: O fluorine to complete the octet rule
that right
Forming a hypothesis
Explanation:
The step in an investigation which involves the prediction of results is the stage of forming of a hypothesis.
- A hypothesis is a stage in scientific investigation that follows shortly after asking a simple scientific question.
- Hypothesis is simply a scientific guess that is logical in nature.
- It presents a problem in a manner in which the problem is stated, the cause and the likely outcome can be predicted.
- After a hypothesis formulation, the experiment is conducted and results of findings weighed against the predictions of the statement.
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