What is formed when an atom loses or gains an electron? O a. ion O b. bond O C. molecule O d. a new element O e. isotope

Q: An atom that has lost or gained one or more electrons iscalled a(n)______ . If an atom loses an…

A: All compounds are made up of atoms. In order to get stability an atom can lose or accept electrons.…

Q: Which parts of an element do not vary in number?a. electronsb. neutronsc. protonsd. All of these…

A: Electrons are negatively charged. Protons are positively charged. Neutrons are neutral.

Q: Bonds in which atoms share electrons are defined as _____________ bonds.a. hydrogenb. ionicc.…

A: Hydrogen bond is a electromagnetic attraction between H atom and a electronegative atom such as O,…

Q: lons are: a. atoms or molecules with unequal numbers of electrons and protons b. atoms or molecules…

A: Question - lons are -  a.) atoms or molecules with unequal numbers of electrons and protons b.)…

Q: DNA and RNA are polymers consisting of monomers called

A: DNA - Deoxyribonucleic acid and RNA - ribonucleic acid. DNA is the carrier of genetic information in…

Q: With the exception of He, elements with two valence electrons will be considered: O Metals…

A: A valence electron is an electron that is associated with an atom, and that can participate in the…

Q: We say that water molecules are because they have a positive and negative end. Elements O a O b Weak…

A: Because of the unequal distribution of electrons among the atoms and the molecule's asymmetrical…

Q: A covalent bond forms whena. electrons are present in a valence shell.b. a valence electron is…

A: Answer is c.) a pair of valence electrons is sharef between two atoms.

Q: Biomolecules are polymers that are formed when ______________are joined by a…

A: Biomolecules: Also called as biological molecules any of numerous substances which are produced by…

Q: The mass number of an atom depends primarily on the number of protons and neutrons. positrons.…

A: An atom is the smallest unit of any matter. It has three subatomic particles; neutrons, protons, and…

Q: When hydrogen is a part of a ________, it has a slight positive charge.   a. Ionic bond   b. polar…

A: Hydrogen bears a slight positive charge and atom with which it is attached bears slight negative…

Q: A free radiacal is  a) Any charged particel  b) An atom or molecule with unpaired electron in the…

A: Ans- b) An atom or molecule with an unpaired electron in the outer shell The free radical define as…

Q: If we removed a neutron from an atom, what would happen to the atom? Group of answer choices: a) its…

A: Atoms are the smallest unit of any matter in the universe. The electron revolves around the atoms in…

Q: . A cation is a(n)a. uncharged atom.b. positively charged atom.c. negatively charged atom.d. atom…

A: A molecule is considered to be composed of two or more atoms having the same elements, which are…

Q: stance which cannot be broken down by chemical means into simpler substa OA. Matter OB. A Mineral…

A: The periodic table is a display of all the discovered chemical elements in the form of a table for…

Q: Electrons move around the nucleus of an atom in pathways calleda. shellsb. orbitalsc. circlesd.…

A: Electrons are negatively charged.

Q: Malnourishment results when there is

A: Malnutrition refers to obtaining deficient or an excessive amount of of sure nutrients. It will…

Q: If you add an electron to fluorine, what will result? A) a negatively charged anion O B) a different…

A: Anion: negatively charged ion. Cation: positively charged ion.

Q: A Determine how much sodium and similar elements are normally found in the human booy B. Determine…

A: Asked : Reason for element are safe for humans to consume from given options.

Q: The mutual attraction of opposite charges holds atomstogether as molecules in a(n) ________ bond.a.…

A: There are two types of covalent bonds: Polar and Non-polar In nonpolar covalent bonds, equal…

Q: A metal ion with a 2+ charge has 23 electrons and forms a compound with a halogen ion that contains…

A: As we know that atomic mass is the addition of proton and neutrons present in the nucleus, whereas…

Q: What atom has only one proton?a. hydrogen   d. a free radicalb. an isotope  e. a radioisotopec.…

A: Proton is the positivity charged particle found in the nucleus of atom,it is small in structure with…

Q: Which of the following statements is not true?a. Water is polar.b. Water stabilizes temperature.c.…

A: Water is a colorless, tasteless, odorless chemical substance which consists of hydrogen and oxygen…

Q: ionic bonds involve_____ a)electrostatic attraction b)sharing electrons c)valence configuration

A: An attraction between molecules or atoms is termed as atomic or molecular bond. They are of many…

Q: Which interaction between atoms is the strongest? van der Waals forces Ionic attraction O…

A: Intermolecular forces (interaction) are the forces which help in interaction between atoms, based on…

Q: Carbon atoms are capable of forming single, double, and triple bonds because carbon is looking for…

A: Valence shell The valence shell is the set of orbitals that can accept electrons to form chemical…

Q: Which statement about the reaction H, + CI, → 2HCI is correct? O The reaction is unbalanced. O H2…

A: In biochemistry and chemistry, a reaction is defined as the chemical changes that take place is a…

Q: The number of protons in a neutral (no charge) atom equals the number of ions. isotopes. neutrons…

A: An ion is a an atom or molecule which is charge, either positively or negatively, based on the…

Q: The characteristic that gives an element its distinctiveproperties is its number of ________.a.…

A: Elements are any substances that cannot be broken down or decomposed into simpler materials through…

Q: Which of the following statements is incorrect? a. Isotopes have the same atomic number and…

A: Every chemical has more then 1 isotope. Atmos is the smallest unit of a chemical compound. Electrons…

Q: If a substance contains two or more elements of different types, it isconsidereda. a compoundb. a…

A: An "element" is a pure substance that made up of only one type of atom and cannot be broken down by…

Q: Which of the following elements is mismatched with its properties or function? (a) carbon—forms the…

A: Answer : All of the above are correctly matched.

Q: Proteins, nucleic acids, lipids, and carbohydrates are based on which element? охудen carbon…

A: Proteins are the linear chains of amino acids attached together via peptide bonds, Carbohydrates are…

Q: What is the name of a representation of the physical world? Answer please A. Alloy B. Compound C.…

A: Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms.

Q: Which small organic molecule makes up carbohydrate, liquids, proteins, and nuclear acids

A: Monomers are the building blocks of the four basic macromolecules of life

Q: Of the bonding forces between atoms and molecules, which are strongest?a. hydrogen bondsb. bonds…

A: Polar Molecules are molecules that contain positive and negative charges. Charged molecules also…

Q: All ions have at least one ________ (select all that arecorrect).a. proton c. electronb. neutron d.…

A: An ion is an atom/molecule that has a charge (positive/negative/neutral). Protons are positively…

Q: The smallest unit of an element that still retains thedistinctive behavior of that element is an…

A: Given: Choose the correct answer: The smallest unit of an element that still retains the distinctive…

Q: How is a covalent bond formed?    A. two atoms share two pairs of electrons B. two atoms share two…

A: Bonds are interaction between chemical species like atoms , molecule or ions to form a stable…

Q: Sodium and Chloride make salt by forming bonds. These weak bonds are easily broken by the chemical…

A:

Q: Which bond in a polypeptide backbone does not freely rotate? a. The bond between CO and NH b. The…

A: The polypeptide chain consists of amino acids that are linked by a peptide bond where the carboxyl…

Q: The partial negative charge at one end of a water molecule is attracted to the partial positive…

A: A chemical compound is formed when two or more different atoms chemically bond together. Carbon…

Q: You discover a new molecule. The new molecule is made up entirely of carbon and hydrogen (no other…

A: Ans- (a) lipid

Q: Draw and label a simplified model of an atom. Explain how this model misrepresents our understanding…

A: An atom is the smallest component of an element present everywhere in the universe. It is made up of…

Q: A molecule of ammonia contains one atom of nitrogenand three atoms of hydrogen. These are linked…

A: Molecular formula for ammonia is NH3. It is usually exists as a gas and the atoms of nitrogen and…

Q: What is an alloy? A. A compound of two metals B. An element of two metals C. A mixture of two metals…

A: Answer-  C. A mixture of two metals.

Q: Which is true about carbon atoms? a. Each of the orbitals in the second shell has one electron in…

A: Carbon atomic number is 6 which represent the number of electrons and it is non-metal. It has 6…

Q: The type of bonding that happens between atoms within a water molecule is which of the following?…

A: The molecules of water are held together by non-covalent interactions.

Q: Which of the following bonds and properties are correctly matched? (a) ionic bonds; are strong only…

A: Answer : B) hydrogen bonds; are responsible for bonding oxygen and hydrogen to form a single water…

Nucleotides

It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). 

Nucleic Acids

Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.