List the general properties of metals, nonmetals, and metalloid elements found in the Periodic Table of Elements. Give two examples of metals, metalloids, and nonmetal atoms.

Q: What THREE elements are rare-earth elements? calcium neodymium rhenium niobium samarium thallium…

A: In the above question the elements which are rare earth metal  among the option provided are…

Q: Identify an element that would have similar properties as magnesium (Mg). Explain your choice and…

A: The element that has the similar properties like magnesium is -

Q: Specify the number of protons and electrons in each of the following ions. A) Se^2−, needed for…

A: To specify the number of protons and electrons we will use the following concept . Since we know…

Q: can you take a look at two elements located into different corners of the Periodic Table - Lithium…

A: An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The atomic…

Q: The following table gives numbers of electrons, protons, and neutrons in atoms or ions of a number…

A: Given find the ions on species A , B and C

Q: he most abundant elements in our food and drinks are oxygen, carbon, hydrogen and nitrogen. Why is…

A: The food contains carbohydrates, proteins, vitamins, fats and many more minerals in it.…

Q: Which of these elements is chemically similar to magnesium? O Sulfur Calcium Iron O Nickel Potassium

A: The elements placed in same group of the periodic table have same number of electrons and hence are…

Q: Give the noble gas shorthand notation (ex: [He] 2s2 2p1) for U+2

A:

Q: The hydroxides formed by three elements of period 3 are given in the following table. Write the…

A: Period 4 elements for group 1A--K, Potassium                                                2A--Ca,…

Q: Classify each of the following fifth-row elements as a metal, a metalloid, or a nonmetal: (a) Y (b)…

A: The metals are elements that are aligned left side of the periodic table and have a tendency to lose…

Q: Which pair of elements would you expect to exhibit the greatest similarity in their physical and…

A: Periodic table represents the systematic arrangement of elements in which the properties of these…

Q: One atom has 15 protons and 16 neutrons in its nucleus, with 15 electrons traveling around it.…

A: Isotopes are the elements which have same atomic numbers but they have different mass number  Ex.…

Q: Consider the following data for the hypothetical element Smileonium, So. What is the average atomic…

A: Given data for the hypothetical element Smileonium: We have to calculate the average atomic mass of…

Q: in which groups of the periodic table would you find metalloids?

A:

Q: Which of the following elements is a good conductor of heat and electricity? neon chlorine carbon…

A: Substance having free electrons undergo movement, By movement they conduct electricity.  These free…

Q: Four elements are named for planets in our solar system (including the ex-planet Pluto). Give their…

A: Since you have posted multiple questions, we are entitled to answer the first 3 only.

Q: potassium and sulfur Express your answers as ions and chemical formula separated by a commas.…

A:

Q: How to infer the presence of the copper ion?

A: The confirmatory tests for copper (II) ion is detected by two method. Method 1: By potassium…

Q: How many electrons, neutrons and protons would be found in an atom of oxygen-14 (atomic number 8)?

A:

Q: According to Heisenberg, Pauli, and other like-minded scientists, what are the basic building blocks…

A: 1) According to Heisenberg, Pauli and  other like -minded scientists, atoms are the building blocks…

Q: 2b. A student formulates the following hypothesis: "If phosphorus were to form a positive ion, P**,…

A: The atomic radius of an element is provided as the distance between the center of the nucleus and…

Q: On another planet, the isotopes of titanium have the given natural abundances. Isotope Abundance…

A: Given : Isotope Abundance Mass (u) 46Ti 75.500% 45.95263 48Ti 12.500% 47.94795 50Ti…

Q: Which of the following elements would be expected to have chemical and physical properties most…

A:

Q: The element belonging to group 3A and period 4 is Gallium Scandium Silicon Aluminum

A: The given questions asks about the identity of element which belongs from 4th period and 3A group.

Q: For a given substance, do you expect the density of the substance in its liquidstate to be closer to…

A: The condition of the matter is one of the distinct ways in which the matter can occur. Four phases…

Q: Name the element which has 26 electrons, 29 electrons, 26 protons

A: General way of element presentation:. AxZ where z is no. Of protons A is no. Of neutrons+protons

Q: He arranged elements into increasing atomic numbers and found that there is a periodic repetition of…

A:

Q: Below is a list of properties of elements. Classify them as a property of metals, nonmetals, or…

A: Properties of Metals : Conduct heat, shiny, solids at room temperature, ductile, high melting point,…

Q: Chemistry An element consists of 4.35% of an isotope with mass 49.946 u, 83.79% of an isotope with…

A: calculate the average atomic mass- firstly multiply the fraction by the mass number for each…

Q: Scientists create a new element with the symbol A and give it the name Awesome. With this, they make…

A: Given acid name is awesome. We need to find the name of acid that makes the most sense. For naming…

Q: Determine the number of atoms of each element in the following molecules. Write the element symbol…

A: The molar mass of the given compound is as follows: K2CO3

Q: What are the names of all the elements in this chemical reaction and which are metals and none…

A: Elements are classified into 3 types 1) Metals :- These are highly electropositive in nature . They…

Q: Which statement is incorrect? Elements are building blocks for compunds. An atom is the smallest…

A: The detailed explanation of the given statements is as follows:   Statement true/false…

Q: ue False Elements of the same group have simīlar physical and chemical properties. There are more…

A: 1.  True. - elements of same groups have similar physical and chemical properties. 2.  False. -…

Q: Write the name of each element and classify it as a metal, nonmetal, or metalloid.a. K…

A: a. K = potassium, ( metal)     b. Ba = Barium ( metal)     c.  I = Iodine (non- metal)

Q: noble gases are also considered to be rare gases. why?

A: Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn) are called rare gases…

Q: What is the reaction that corresponds to the first ionization energy of potassium, K? Express your…

A: • We need to write the reaction that corresponds to the first ionization energy of potassium.

Q: Which pair of elements would you expect to exhibit the greatest similarity in their physical and…

A: The properties of elements are dependent over their electronic distribution. The similarity in the…

Q: hydrogen peroxide → water + oxygen List two physical / chemical properties for each compound

A:

Q: Much of the evidence for the existence of atoms comes from Multiple Choice chemistry. mechanics.…

A: Atom is the smallest individual particle having its existence.

Q: Is Ni and Cu  Different elements, isotopes or ions?

A: Isotopes: Each of two or more forms of the same element that contain equal numbers of protons but…

Q: The following table gives numbers of electrons, protons, and neutrons in atoms or ions of a number…

A: An element's fundamental unit is the atom. An atom is a unit of matter that cannot be broken down…

Q: record the element names, chemical symbols, and atomic numbers for the following 14 elements along…

A: As per the Q&A guidelines I am allowed to answering the first three sub-parts of a question. So,…

Q: Can you solve these please 1. Question: The glowing splint test is a demonstration of what property…

A: Glowing split test is basically for the oxidising agent like oxygen here the oxidising property of…

Q: What type of light is used in a TV remote control?     What is the mass number of the radioactive…

A: 1. A remote has an Infrared (IR) transmitter led which uses IR light to transmit you input to TV…

Q: Below is a list of properties of elements. Classify them as a property of metals, nonmetals, or…

A: Given properties:

Q: Horizontal rows of the periodic table are known as __________. Group of answer choices metalloids…

A: Horizontal rows of the periodic table are known as  Answer :- periods