What conclusion can be drawn about the relationship between the two reactions?
What conclusion could be drawn about the relationship between the two reactions? They’re opposite of each other / they create a cycle / each one uses the products produced by the other.
What is conclusion of periodic table?
The periodic table is one of the most important achievements in the field of chemistry. It is full of patterns that enable us to better understand the world around us. Without it we would not have many of the products and medicine that we have today.
How does the arrangement of the elements relate to their properties?
The arrangement of the periodic table leads us to visualize certain trends among the atoms. The vertical columns (groups) of the periodic table are arranged such that all its elements have the same number of valence electrons. All elements within a certain group thus share similar properties.
What is the arrangement of elements based on?
Explanation: The arrangement of elements in the Modern Periodic Table is based on their atomic number. The atomic number increases along the horizontal rows.
What part does energy play in chemistry?
All chemical reactions involve energy. Energy is used to break bonds in reactants and energy is released when new bonds form in products. Like the combustion reaction in a furnace some chemical reactions require less energy to break bonds in reactants than is released when bonds form in products.
What conclusion can you make about elements and compounds?
Answer: Whenever two atoms bond together they form a molecule. … All matter in the universe consists of pure elements bonded compounds or a mixture of atoms and compounds. All elements are organized by the number of protons in their atom’s nucleus on the Periodic Table of Elements.
What is the conclusion for classification of elements?
On it elements are arranged by increasing atomic number. However an element’s position on the table reveals a lot more about an element then the number of protons in its nucleus. We have seen that the periodic table also contains a great deal of information about an element’s chemical and physical properties.
What is the conclusion of chemistry?
chemistry is one of the most important branches of modern science which deals with the chemical circumstances of different substances. Importance of chemistry: Chemistry is very important and mandatorily necessary in our modern lifestyle for an efficient living.
How will you explain the arrangement of elements in the periodic table?
In the modern periodic table the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom. … In a periodic table arranged in order of increasing atomic number elements having similar chemical properties naturally line up in the same column (group).
Why is the arrangement of the periodic table important?
How will you describe the arrangement of elements with respect to atomic numbers assigned to each of them?
What is the relationship between location of an element in the periodic table and the anion it forms?
That is group 1 elements form 1+ ions group 2 elements form 2+ ions and so on. Moving from the far right to the left on the periodic table elements often form anions with a negative charge equal to the number of groups moved left from the noble gases.
What is used as basis for the better arrangement of elements?
The physical and the chemical properties of an element are the periodic functions of their atomic number. The basis of modern periodic table is arrangement of elements in the increasing form of atomic numbers.
Why do you think the elements are arranged the way that they are?
The chemical elements are arranged in order of increasing atomic number. … This is because they have the same number of outer electrons and the same valency. An example of a group in the periodic table is the alkali metal group.
What is the relationship of energy to chemistry?
How are forces and energy related to chemistry? Chemical bonds are attractions due to electromagnetic force. Chemical bonds are attractions between opposite electric charges. This bond is potential energy that changes to kinetic energy during chemical reactions when the atoms and molecules move around.
What is the relationship between chemical reactions and changes in the energy of the molecules involved?
What is made of atoms of different elements bonded together?
|compound||a substance made of atoms of different elements bonded together ina substance made of atoms of different elements bonded together in a certain ratio.|
|ion||an atom that has gained or lost one or more electrons|
What have you learned about elements and compound?
An element is a material that consists of a single type of atom. Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.
Why is it important to learn about elements and compounds?
Understanding elements and compounds is fundamental to many aspects of more advanced study. … Students will learn the detailed structure of atoms and how elements can be defined in terms of atomic number. The particle model will be extended and they will appreciate that particles can be atoms ions or molecules.
What happens when atoms are bonded together?
A chemical bond is formed when atoms are held together by attractive forces. This attraction occurs when electrons are shared between atoms or when electrons are exchanged between the atoms that are involved in the bond. … In other words one atom gains an electron while the other loses an electron.
What is the conclusion of a project?
A conclusion is the final piece of writing in a research paper essay or article that summarizes the entire work. The conclusion paragraph should restate your thesis summarize the key supporting ideas you discussed throughout the work and offer your final impression on the central idea.
How do you write a conclusion for a science project?
- Restate: Restate the lab experiment. Describe the assignment.
- Explain: Explain the purpose of the lab. What were you trying to figure out or discover? …
- Results: Explain your results. …
- Uncertainties: Account for uncertainties and errors. …
- New: Discuss new questions or discoveries that emerged from the experiment.
What is the conclusion of Mendeleev periodic table?
After studying the properties of every element Mendeleev found that the properties of elements were related to atomic mass in a periodic way. He arranged the elements such that elements with similar properties fell into the same vertical columns of the periodic table.
What is conclusion in scientific method?
A conclusion is a statement based on experimental measurements and observations. It includes a summary of the results whether or not the hypothesis was supported the significance of the study and future research. What is an Experiment? It is a detailed procedure designed to test a hypothesis.
What is an example of a conclusion in science?
My hypothesis was that Energizer would last the longest in all of the devices tested. My results do support my hypothesis. I think the tests I did went smoothly and I had no problems except for the fact that the batteries recover some of their voltage if they are not running in something.
What is an example of a conclusion?
How does the periodic table help you understand how elements chemically bond?
Periodic trends affect bonding because of how the elements are arranged on the periodic table. For example elements can be arranged by their electronegative electron affinity atomic radius or ionization energy. Electronegative is the atoms ability to attract other bonded atoms.
What is the relationship between the atomic number of an element and its place on the periodic table?
Atomic number and protons
After the discovery of protons scientists realised that the atomic number of an element is the same as the number of protons in its nucleus . In the modern periodic table the elements are arranged according to their atomic number – not their relative atomic mass .
What is it about the elements in a column of the periodic table that makes them behave similarly?
The columns of the table represent groups or families of elements. The elements in a group often look and behave similarly because they have the same number of electrons in their outermost shell — the face they show to the world.
What is the main importance of the periodic trends?
Major periodic trends include: electronegativity ionization energy electron affinity atomic radius melting point and metallic character. Periodic trends arising from the arrangement of the periodic table provide chemists with an invaluable tool to quickly predict an element’s properties.
What is the significance of the periodic table of elements choose the best answer?
What are the important features in the periodic table of elements?
- The table is divided into rows and columns. …
- There are 18 groups and 7 periods in the periodic table of elements.
- There are two horizontal blocks of elements known as the lanthanides and actinides.
- Elements are arranged according to their atomic numbers and electron configurations.
How does the periodic table represent the atomic model for any element?
The periodic table represents neutral atoms. The atomic number is typically located above the element symbol. Beneath the element symbol is the atomic mass. Atomic mass is measured in Atomic Mass Units where 1 amu = (1/12) mass of carbon measured in grams.
How do you explain the periodic table to a child?
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