4. Identify the following elements as either metal, metalloid, or non-metal: a. Cd b. Br c. Si

Q: Platinum is a precious metal used in a wide variety of products. Besides fi ne jewelry, platinum is…

A: Hi, since you posted questions with multiple subparts we will answer the first three questions for…

Q: atom

A: An atom lose or gain electrons in order to attain noble gas configuration (stable configuration)

Q: Use the periodic table to determine  quantity. the number of 3s electrons in Mg

A:

Q: Even though Si has a larger mass than Al, Si's radius is smaller than Al. Explain why.

A:

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: Because zinc has nearly the same atomic radius as copper(d=8.95 g/cm³), zinc atoms substitute for…

A: It is the fixed distance between the nuclei of two bonded atoms (like atoms or unlike).

Q: For each of the following, give the most specific classification according to type of matter:…

A:

Q: 67. Which pair of elements do you expect to be most similar? Why?(a) Si and P(b) Cl and F(c) Na and…

A: Periodic table is an arrangement of elements in the order of increasing atomic number from left to…

Q: 10. Which of the following does not match the others? 168 (A) 67.2 3.88 1000 100 10 All, (M)/mol)…

A: ◆ Electronic Configuration is the distribution of electrons in the energy levels of the atom. The…

Q: The electronic configuration of an element with atomic number 8 and mass number 16 is O 1s2/2s2 2p4…

A: Electronic configuration is the distribution of electrons of an atom or molecule. It shows the…

Q: 34. How many protons, electrons and net does Be have? beryllum 4 Ве 9.0122

A:

Q: Examine Figure 5.1 and determine the name of the element that Mendeleev predicted before its…

A: In Mendeleev's periodic table elements are arranged according to their increasing atomic…

Q: 69. What does the graph to the right best represent? a) atomic radii of Period 2 b) ionization…

A: Note: They all are very short questions so I am solving all questions. Given: Graph Rare earth…

Q: 15. What are the properties of nonmetals? Where are nonmetals found on the periodic table?

A: Properties of Non-metals = Non-metals are the elements that gain electrons from the negatively…

Q: Determine the ions of Group IA

A: The ions of Group IA in the periodic table is to be identified.

Q: 68. Which pair of elements do you expect to be most similar? Why?(a) Ti and Ga(b) N and O(c) Li and…

A: The elements belonging to the same group exhibit similar properties. This is because the elements in…

Q: 7) Summarize Dalton’s, Rutherford's and J.J. Thompson's atom models on your own words. You can draw…

A: Dalton’s atomic theory proposed that all matter was composed of atoms, indivisible and…

Q: 04:- Who........ 1-Made the first real periodic table. na elements according to their propertie=…

A: We are authorized to solve only one question at a time. Please post the rest of the questions…

Q: B. Fill in the missing information in the table. You are not allowed to use your periodic Give 2…

A: We are given hints about elements belonging to a same group, we have to identify their group number…

Q: 1. How are electrons arranged in atoms? In particular, what are the possible positions and what are…

A: Electron configuration is referred to as the distribution of electrons of an atom or a molecule, in…

Q: Which of the following of Dalton’s proposals proved to be invalid? (a) Atoms are indestructible. (b)…

A: Dalton regarded the atom as hard and indivisible. Although Dalton's atomic theory provided a sound…

Q: Which statement is INCORRECT? Rb is larger than Rb* O Ra is larger than Ba Mg is larger than P Ca2+…

A: Atomic radius is the distance between center of nucleus and outer most shell In period atomic radius…

Q: Which element would be expected to have properties similar to germanium (Ge)? A) S B) Sn C) Sb D) As

A:

Q: What type of Ion should the element Francium (Fr) make and what charge? What about Sulfur (S)?

A: Given To know ionic charge of Francium(Fr) abd Sulfur(s).

Q: Part 1 Color the 3 main regions (Metals, Nonmetals, S Metalloids) a different color and label each…

A: Elements in periodic table can be either metals, non-metals, or metalloids.

Q: Use your periodic table to give an example of an element that is/has: a. A metal that is NOT a…

A: The periodic  table is first invented by mendeleev's scientists.  It is based on atomic mass of…

Q: d. What is the charge for all of the elements in Group 2? e. What is the charge for all of the…

A: d) The general electronic configuration of group 2 elements is ns2. Thus they lose two e- and form…

Q: a) What is the chemical name of this element? b) Write the electron configuration of X'. c) Write…

A: The diagram of element “X”, that shows the electron present in different shells, is shown below. In…

Q: 3. Calculate atomic mass of naturally occurring boron if 19.9% of boron atoms are 105B and 80.1% are…

A:

Q: 9. Name 3 foods that would be similar to the Plum-Pudding Model of the atom

A: Plum-pudding model.         As here question no 9 is answering which is related to chemistry.

Q: Assign the following element to his group, Ge

A: The substance that is made up of only one kind of atom is known as the element. Elements cant be…

Q: 2+ Write the electron configuration of Mn* using the short-hand, noble gas method.

A: Given :- symbol of an ion = Mn2+  To write :- electron configuration using short-hand, noble gas…

Q: Q1 a) Write the electronic configuration of an ion formed by an element of group1A and period 6. (2…

A: [a.] An element of group 1A and period 6  = Cs ( Caesium) Ion formed by Cs = Cs+ (Caesium ion)  So,…

Q: 5) Consider an atom of the element nitrogen (N). A nitrogen anion can be formed fr this atom by a)…

A: Anion is negatively charged species.

Q: Define an atom – Label each of the parts of the atom on the diagram to the right.

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: 46. The diagram at the right represents two adjacent atoms of sulfur. The measure ôf distance o yasl…

A: As per rule only the first question can be answered: Solution to Q 46) The covalent radius of S (rS)…

Q: Br- Se2- Rb+ A and B B and C A and C A, B, and C

A: Correct option is all the above A,B,C. For negative charge we have to add an electron. For positive…

Q: Calculate the atomic mass of naturally occurring boron if 19.9% of the boron atoms are 510 B and…

A: The atomic mass of naturally occurring boron has to be given,

Q: The vast majority of the ISM, both by volume and by mass, is made up of this element, found at many…

A: ISM means Interstellar medium. It consist of matter and radiation that exist between the spaces of…

Q: According to Coulomb’s law, if the separation between two particles of the same charge is doubled,…

A: Coulomb's law states that the potential energy (E) of two charged particles is dependent on their…

Q: After studylng the chemical reactions of many compounds made of carbon, August discovers a chemical…

A: According to the question, we need to determine the missing words in the following phase.

Q: specific metal has an atomic weight of 95.94 g/mol, and atomic radius of 0.1363 nm . It has a BCC…

A: The density of the metal is given below

Q: What are periodic properties? Explain periodicity using an example from everyday life

A: Below attached file showing the details answer. All the best.

Q: 19. Draw an atom (not actual size). Label your drawing as completely as possible.

A: An atom is the fundamental unit that forms an element. They are very small and contains a nucleus at…

Q: (16) In the Zn²+ ion (in its ground state), how many electrons are 1 = 0 and s = The atomic number…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: A) Br- Se b) A1 3+ みt P3- c) F , Mg z+ D) Ne, Ar

A:

Q: 1. Why were the heavier elements not formed the way that the light elements were? 2. How are stars…

A: 1) The lightest elements ( hydrogen, Helium, deuterium , lithium) were produced in the Big Bang…

Q: Look up the density of silicon and of lead in a table online. Then look up the atomic radius of…

A: The densities of atoms depends on the number of protons in the nucleus. The number of protons is…

Q: fluorine (F) nitrogen (N) boron (B) iodine (I) Which two elements are in the same group and would…

A: The elements which have the same number of electrons in the outermost shell (or the same number of…