Which one of the following elements is a poor conductor of heat and electricity? iron lead fluorine copper

Q: Which element is a main-group metal with an evenatomic number? (a) K (b) Ca (c) Cr (d) Se

A: The main group metal with an even atomic number has to be given,

Q: Which of the following exists in nature as a diatomic molecular element?  Group of answer choices…

A:

Q: Describe the general characteristics of metals.

A: Introduction: In the periodic table, all elements can be classified into three categories, 1.Metal:…

Q: The Group 1B metals, Cu, Ag, and Au, are calledcoinage metals. What chemical properties make…

A: The chemical properties of Group 1B metal that makes them suitable for making coins and jewelry has…

Q: whats wrong in this    Lithium is a main group metal and sodium is a main group metal. Lithium is…

A: As per the given information, Lithium is a main group metal and sodium is a main group metal.…

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: Iodine and iodine Copper and sulfur Hydrogen and fluorine Carbon and oxygen

A: Given:   4.0 1.7                                                0.4…

Q: Which of the following metals is least chemically reactive?  potassium  sodium  iron  magnesium…

A: The reactivity of s block metals are very high due to presence of just either 1 or 2 electrons in…

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: The "cards" are separated top to bottom by color. What are the common characteristics of the cards…

A: Sepration of cards on the basis of color means  they will have same type of physical  and chemical…

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: Select all of the following elements that are categorized as non-metals. OA. Ag O B. K O C.B O D.S O…

A: Non metals : These are the elements which are placed to right corner of the periodic table and have…

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: Enter either the word "presence" or the word "absence" in the first blank, then the name of the…

A: The salts which are soluble in hot water, remains in the filtrate and one which are insoluble in hot…

Q: Silver (I) Chloride Magnesium sulfide Carbon dioxide

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Which of the following formulas does not include a parenthesis? O a. aluminum nitrate b. silver…

A:

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: What is the most reactive metal to least reactive metal out of: Zinc Tim  iron  magnesium…

A: Metals are good conductor of heat and electricity for example: aluminium, copper whereas non metal…

Q: Differentiate between metal and non-metal on the basis of their chemical properties.

A: Metals are lustrous and opaque elements which are good conductor of heat as well as electricity. And…

Q: Give the ions present and their relative numbers in iron(II) phosphate. Select one: 3- a. 1 Fe 2+…

A: Following are the relative no. Of  respective ions in the given complex.

Q: identify the metal as representative element or transition element. Barium nitrite

A: The formula of the chemical compound provides a way to represent any chemical substance using the…

Q: All metallic elements are solid at room temperature except _________. A. sodium B. calcium C.…

A: At room temperature, mercury is not at solid state. Mercury is  liquid above 0°C Temperature This is…

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: <p>Describe three typical properties of metals.

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: In the table below, there are descriptions of an experiment on samples of three different chemical…

A: Properties of metal  •  Lustrous  • High melting point and boiling point.  • Malleable - They can be…

Q: TRUE for non-metal elements? Non-metals do not conduct electricity well Non-metals are represented…

A: Yes non metals do not conduct the electricity well as because they do not have/posses free electrons…

Q: Why we need to detrimine the concentration of trace elements?

A:

Q: Which of the following are paired correctly? Chlorine Cl2 Sulfur S4 Phosphorus Nitrogen N

A: We know that, Chemical symbol of , Nitrogen is N

Q: Let’s say you were doing an experiment on two different chemicals in two different test tubes. One…

A: The completion of a chemical reaction is indicated by several means. One of the means which is used…

Q: Of the elements listed below, which one would be a poor conductor of heat and electricity? a) Mg b)…

A: Which element among the following Mg, CS, Se, Sn & Zn   is poor conductor of heat and…

Q: Which of the following statements is always true? A All representative elements are nonmetals. All…

A: In the periodic table, the elements present in 1, 2, and 13 to 18 groups are known as representative…

Q: Which instrument can be used best to detect metals in Water like POTASSIUM?

A: potassium is very reactive element and it reacts even in water and air .

Q: Which of the elements listed below has a lower ionization energy Strontium Silicon

A: Solution Ionization energies square measure continually positive numbers, as a result of energy…

Q: The process of iron combining with oxygen to form rust is considered a chemical change because rust…

A: Rusting It is an oxidation reaction. The iron reacts with water and oxygen to form hydrated…

Q: What metal ion is responsible for the red firework?   Street lights are yellow/orange in color and…

A: What metal ion is responsible for the red firework?   Street lights are yellow/orange in color and…

Q: Identify the group and period to which each of the following elements belongs: Si element number…

A: 1) Silicon i.e Si : Silicon is an element which is present in the carbon family in the periodic…

Q: Which pair of elements is both malleable and able to conduct heat? Group of answer choices gold and…

A: Answer is  gold and neon

Q: Classify each of the following as a METALor a NONMETAL: Sulfur 1. Metal Calcium 2. Nonmetal Lithium

A: Metals are those elements which have tendency to loose electrons while non metals have tendency to…

Q: what are Metals

A: Metal are the substances which form naturally beneath the surface of earth. They generally are found…

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

A: Given properties:

Q: FORMULA WRITING. Write the formula for each of the following compounds and identify the metal as…

A: The type of elements and the number of the specific element present in a compound are represented by…

Q: which element is a metal in period 5 of the periodic table

A: Periodic table:In a periodic table elements are arranged by atomic number, electron configuration,…

Q: 41. Which of the following statements are true of the chemistry of Group IV elements of the Periodic…

A: Group IV Element: These group have elements Carbon, Silicon, Germanium, Tin and lead. This group…

Q: 1) indicate whether the following properties are representatives of a metal, semi metal, or non…

A: The elements that have a lustrous appearance and the high conducting property are known as metals.…

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

Q: FORMULA WRITING. Write the formula for each of the following compounds and identify the metal as…

A: Barium nitrite consists of a Ba2+ cation and a polyatomic anion NO2-. The respective oxidation…