(use the "A" groups) Period Number of valence electrons Valence electron configuration 2s22p6 n or lose electrons for an octet? It has 8 valence How many gained or lost? electrons Charge once ionized neutral 2 8 3 8 3s2 3p6 Has 8 valence electron neutral 4 8 4s2 4p6 Has 8 valence electrons neutral

Q: ● . Electrons scattered throughout . (a) Expected Results Diffuse positive charge Assuming that the…

A: •Here alpha radiation are bombarding on atom. •Arrows are streams of the alpha radiation and in…

Q: What are the 50 elements and their symbols?

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

Q: How are the concepts of an atom and an element related? What causes elements to differ?

A: A particular atom will have the same number of protons and electrons and most atoms have at least as…

Q: Why is Rutherford's model (with electrons orbiting the nucleus like planets around the sun) not…

A: Rutherford, in his experiment, directed high energy streams of α-particles from a radioactive source…

Q: All metals and noble gases exist in the monatomic form (simply as atoms). *     True False

A: The bonding in main-group elements can be explained on the basis of the octet rule. The electronic…

Q: A neutral atom of aluminum has 14 neutrons and 13 protons. How many electrons does this aluminum…

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: 1. Compare and contrast elements and compounds. Use an example of each in your explanation.

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: PROPOSE YOUR OWN MODEL OF ATOM AND WHY. WRITE A BRIEF DESCRIPTION OF YOUR PROPOSED MODEL.

A: The atoms are much smaller and can be seen by the electronic microscope and generally it has three…

Q: Which of the following elements would you expect to have properties most similar to those of…

A: Given elements: a) Cu b) F c) Na d) Cr e) S

Q: Describe the structure of an atom, including the charge of each subatomic particle.

A: Atom is the basic unit of matter it consists of a heavy positive mass at its center called the…

Q: Which statement about the three fundamental particles is false? O a. The charge of a proton is equal…

A: Electrons, protons and neutrons are considered as fundamental partials of atom

Q: State the periodic law, and provide at least two examples to illustrate its meaning. Identify the…

A: The given problem is from the periodic properties of elements. The periodic law and corresponding…

Q: How do I find the radii of an atom when the prompt provides its density and what element the atom…

A:

Q: Use a model to explain how subatomic particles interact to cause ONE of the following periodic…

A: Various atomic models were proposed from time to time to explain the structure of an atom and how…

Q: A new element is discovered. The new element is named Tucsonium and has the chemical symbol Tu. It…

A:

Q: Post-Lab Questions: Answer the following questions in complete sentences using data from the lab to…

A: The given data shows the properties of metals, non-metals, and metalloids.Physical properties…

Q: Why do atoms combine chemically with other atoms?

A: To explain: Why do atoms combine chemically with other atoms?

Q: Discuss the development of atomic models of Thomson's atomic model and Rutherford's atomic model,…

A: Plum Pudding Atomic Theory Thomson proposed that the shape of an atom resembles that of a sphere…

Q: How can the periodic table be used to determine the number of valence electrons of a given element?…

A: The groups of the periodic table indicate the number of valence electrons of a given element. For…

Q: A sample of 5.000 g of nitrogen can be combined with 5.714 g of oxygen to form nitric oxide gas…

A: The amount of products formed for the given quantity of reactants is determined using stoichiometry.…

Q: What is the importance of the periodic table? What information can we gain from looking at the…

A: Importance of periodic table: Periodic table is defined as a table of chemical elements that are…

Q: Describe the plum-pudding model of the atom.

A: The 'plum pudding' model of the atom was proposed by J.J Thomson. According to this model, the atom…

Q: Which statement is correct? A charge neutral atom contains the same number of neutrons and…

A: An atom is the basic unit of matter, consisting of a nucleus surrounded by one or more electrons.…

Q: In chemistry, the atom is the fundamental building block of chemical structures. Unique combinations…

A: Atom is a neutral i.e total positive charge is equal to total negative charge.  In an atom , atomic…

Q: 51. Pick an element in the periodic table from the inside front cover of this book. Use a search…

A: The element chosen is oxygen. It is discovered by Joseph Priestly in 1774. The name oxygen…

Q: How does the structure of an atom relate to its chemical properties?

A: Atoms are the basic building blocks of matter and play a crucial role in determining the chemical…

Q: Explain what is meant by the periodic table with an explanation of the divisions it consists of and…

A: Periodic table is the important tools in the history of chemistry . It arranged the atomic…

Q: Write the standard atomic notation for an atom with 20 neutrons, 26 electrons, and 26 protons. Note…

A: This solved by atomic number and atomic weight determination.

Q: Describe Thomson’s model of the atom. How might itaccount for the production of cathode rays?

A: The atomic model proposed by Thomson was the plum-pudding model. According to Thomson's atomic…

Q: Write the name of the element next to the atom. You may need to use the Periodic Table to

A: For  naming of the atom we should know number of electrons and protons

Q: Was Democritus’s proposal of the existence of atoms based on scientific methods or ideas? Explain

A:

Q: How many valence electrons does each of the following atoms have? titanium, ? = 22 iodine, ? = 53…

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the…

Q: Elements in the same row of the periodic table exhibit similar chemical properties. True False

A: In the periodic table, the elements are arranged according to their atomic number (electronic…

Q: Define the term main group element. Then, determine the charge that an atom of each of the following…

A: We have been asked to define the term main group element and to assign charges to the atom when…

Q: Which of the following statements is the best description of a fundamental difference between the…

A: The main difference between the atomic models of Thomson and Rutherford is that Thomson model of…

Q: What is an element?How are elements arranged in the periodic table?

A: The elements starting from hydrogen having atomic number 1 to the element with atomic number 118 are…

Q: Define atom. List the subatomic particles, and describe their relative masses, charges, and…

A: Chemistry is the branch of science concerned with the composition, structure, properties, and…

Q: Examine the statement “No two elements have the same line spectrum.” Explain why this can be used…

A: Every element has a unique line spectrum. This is because the energy absorbed by the electron is…

Q: Of the follOV ng statements Is correct about the periodic law? Properties of elements are periodic…

A: