Complete the sentences by crossing out the words that are wrong. The first one has been done for you. Nan-Metals Metals can be hammered into shape. Non-Metals Metals often have low melting point. Non-Metals Metals are good conductors of heat.

Q: 1. Platinum ( pt) a. Write the physical and chemical properties of the element above. b. Write the…

A: Please find your solution below :  a. Physical properties : Atomic number = 78 Atomic mass =…

Q: What does "X" represent in the following symbol? 53 28 silicon O iodine O thallium O nickel

A: Fourth option. Nickel

Q: Water is considered to be a diatomic molecule because it is composed of two different types of…

A: Atomicity is determined by the number of atoms in a molecule not by the different type of atom which…

Q: What does "X" represent in the following symbol? 28 14 X O silicon sulfur O nickel O nitrogen

A: "X” represent in the 28X14 symbol = ?

Q: OMg +o -> MgO Mg = Mg = %3D %3D 0 = %3D %3D

A: Complete the reaction by using coefficient---

Q: Using the information given in Table 4, fill the blanks with > or <. IE1 –-- IE2 -- IE3 Li: IE3 IE1…

A: The data given is,

Q: Classify each of the following as a COMPOUND or an ELEMĖNT: argon gas (Ar) salt (NaCI) 1. Compound…

A: Element are the substance that are composed of a single atom while compound are the substance that…

Q: The elemental symbols for an element are O 1or 2 letter symbols with the 1s* letter upper case and…

A: Each element has unique symbols.

Q: Part 2: Color land labell each section of the Representative Elements a unique shade. Color the…

A: Representative elements are main group elements. They are s-block and p-block elements. There are…

Q: 3. Write the name and symbol for each of the elements described below) a. Halogen in Period 4 b.…

A: By using this period table we can get the answer for the given questions .

Q: Write the name of the following elements, ions, or compounds: (please answer all questions in order)…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Write the symbol for every chemical element that has atomic number less than 58 and atomic mass…

A:

Q: Each shape represents a type of particle (such as an atom or molecule). Classify each image as a…

A: The substance which is made up of only one matter is known as pure substances.

Q: John Dalton developed an atomic theory from which our current theory was built off. Which of the…

A: Dalton atomic theory is on the basis of law of conservation of mass , i.e mass can neither be…

Q: Which of the following does NOT describe a metal? O good conductor of electricity O found on the…

A: Metals are solids at Room temperature except liquid mercury(Hg) These are having high melting point…

Q: Matter can be classified into several categories. All substances are either pure chemical substances…

A: Given : a). Sample of sea water contains water , sodium ion, chloride ion, and dissolved salts.  b).…

Q: (BASIC QUESTIONS) Choose or tick the phase of matter that is being described CHOICES: GAS LIQUID…

A: Matter is divided into three different category named as solid, gas and liquids depending on the…

Q: What does "X" represent in the following symbol? 28 14 X O sulfur O silicon O zinc

A: We have to predict  element X.

Q: Classify each of the following as a COMPOUND or an ELEMÉNT: argon gas (Ar) salt (NaCl) 1. Compound…

A:

Q: What is the symbol in the image below? I. 37 CI 17 lon Isotope Neutral Atom

A:

Q: 1. State the law of definite proportions (or the law of constant composition). Consult your lecture…

A: Since we only answer one question at a time, we’ll answer the first one. Please resubmit the…

Q: following

A: According to the question, we need to determine the incorrect statement.    We know that: An…

Q: is found in the nucleic acids that IImake 14 Identify Each highlighted element below is found in an…

A:

Q: Choose the letter/s that applies: Which of the following connotes FAR from the real forms or…

A: An element is a substance which consists of only one type of an atom that is transformed into a new…

Q: Write the name of each of the following substances: (Write the answer ONLY) (a) (HCOO)2Ni-AH2O (h)…

A: Less electronegative element is named first and then the more electronegative one. 1/2H2O…

Q: 78. Proust's Law   Law of Definite Proportions Law of Multiple Proportions Law of Conservation…

A:

Q: write the word or words that best complete each statement. The natural magnet discovered by the…

A: Following are the appropriate answers of the given questions.

Q: HO OH NO2

A: Since you have posted question with multiple sub-parts, we are entitled to answer to first 3 only.

Q: Classify each of the following as a COMPOUND or an ELEMENT: carbon dioxide (CO,) argon gas (Ar) 1.…

A: 1. Compounds is chemical substance which is formed when two or two elements combine in a definite…

Q: Which of the following statements is/are correct about the figures below? Select all that apply.…

A: Statement 1 is incorrect because oxygen is diatomic molecule but in the figure monoatomic molecules…

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: Match the following tems with their correct definition. Empareja los siguientes téminos con su…

A: Chemical property ----&gt; A characteristic of matter that can be observed or measured when changing…

Q: What is a form of matter that is chemically pure and cannot be physically separated

A: To identify: A form of matter that is chemically pure and cannot be physically separated.

Q: If two objects repel from one another, what must be happening on the subatomic scale? one of them is…

A: Object repel when they have same charges , charge may be positive or negative . But the charge must…

Q: 5. Use the internet to figure out which of the following METAL ELEMENTS is most likely the mystery…

A: D block elements are called as transition metals like zinc means they have characteristics between s…

Q: Na [Na]' 1 Sodium Sodium chloride Chlorine atom atom

A: Covalent bonds are formed by the sharing of electrons between atoms while ionic bonds are formed by…

Q: Use the periodic table to give the name and symbol for each of the following elements:(a) the noble…

A:

Q: In the text box below, write the name of the following: Please label the name with its corresponding…

A:

Q: At room temperature, nitrogen does not have a definite shape or volume. Which state is it In? water…

A: Based on the shape and volume obtained by a substance, it can be classified as solid , liquid or…

Q: Write the name of the following elements, ions, or compounds: (please answer all questions in…

A: Given a.) the element that has 16 protons b.)  the ion with a -1 charge that has 18 electrons c.)…

Q: write the chemical formula for each substance , and draw a nanoscale picture of how the molecules…

A: Given molecule: Water as liquid and nitrogen gas.

Q: Match the following terms with the best description below. Place the letter on the line. B.…

A: Answer- 1) study of matter- anything having mass and occupying space →Chemistry 2) Main attractive…

Q: All of the following are TRUE statements about atoms except: O Atoms are the smallest building block…

A: Atoms are the smallest building block of matter. They contain proton, neutron and electron. Atoms…

Q: Determine the elements that exist as diatomic molecules by writing check on the box beside the…

A: Determine which element that exist as diatomic molecules ?

Q: 4. Complete the table below Symbol A p* Representation e Li 1 1 eomes 8. C 12 6. 19 39 00

A: 4. (a) Atomic number (Z) = Number of protons Mass number (A) = Number of protons + Number of…

Q: Consider the following statements: 1. A molecule is the smallest particle of an element or compound.…

A: An element is the smallest particle of a molecule or compound  A molecule can exist independently

Q: 2 Give the name of each of the following elements: a. Noble gas in Period 2 b. Halogen in Period 2,…

A:

Q: Fill in the blank: What is the name for the compound given below? HS

A: Thiol compounds are named just like alcohols, using a suffix "thiol". Given compound is…

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: :punoc has properties exactly like its elements. can be physically separated into its elemen is a…

A: 13) compound separate only by destroying you not by physical methods Compound is formed by mixture…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.