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

Q: Compared with 31P, the radioactive isotope 32P has(A) a different atomic number.(B) one more…

A:

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: The atomic number of an atom is determined by the number of in the atom. (a) protons (b) neutrons…

A: The fundamental building blocks of matter are known as atoms. They are composed of neutrally-charged…

Q: The number of protons in a neutral (no charge) atom equals the number of O elements. electrons. O…

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

Q: An atom that has lost an electron

A: Answer: The atom that has lost an electron becomes a positively charged ion (called a cation), while…

Q: Explain how the electron configuration of an atom influences its chemical behavior and explain why…

A: Atoms consist of nucleus, which contains protons and neutrons, and electrons. These electrons are…

Q: The atomic number on an element tells us the number of

A: An atom is made up of three kinds of subatomic particles called protons, neutrons, and electrons,…

Q: What are the two types of chemical reactions

A: Two types of chemical reactions 1) Combination reaction 2) Decomposition reaction

Q: The property that distinguishes an atom of one element (carbon, for example) from an atom of another…

A: An atom is made up of certain subatomic particles including protons, electrons, and neutrons. The…

Q: number of protons to number of neutrons ratio in

A: Every element in the universe has a proton, neutron, and electron. The number of protons is similar…

Q: What is activation energy? a. The thermal energy associated with random movements of molecules…

A: Activation energy is the energy required to activate atoms during a reaction.  Lower activation…

Q: A chemical species with an unpaired electron is called a_____________.

A: A molecule with one or more unpaired electron in its outer shell is called a free radical.

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: An isotope of sodium (Na) has a mass number of 22 and an atomic number of 11.how many neutrons does…

A:

Q: The atomic number of potassium (K) is 19 and the mass number is 39. How many neutrons does potassium…

A: Atomic number is defined as the number of protons in the nucleus of an atom . Mass number is defined…

Q: an atom whose number of electrons does not equal its number of protons is called... ion isotope…

A: Atom is the smallest unit of any matter that may be solid, liquid or gas. The core of the atom is…

Q: Hów dõés a catalyst work? O by increasing the temperature of a chemical reaction O by decreasing the…

A: Enzymes are biocatalyst in nature. All the reaction in the living organisms body are catalyzed by…

Q: If you added one more proton to an atom of iron, then what element would it become?   A. Cobalt   B.…

A: Proton carries a positive electrical charge and they alone determine the nucleus charge.Hence adding…

Q: The atomic mass number of an atom is determined by the sum of the number of in the atom. (a) protons…

A: The total number of neutrons and protons in an atomic nucleus is called atomic mass number.

Q: The atomic number on the periodic table tells us how many are in the atom. * O protons O neutrons O…

A: All biomolecules are made us of the basic chemical elements that why Biology and chemistry go hand…

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: The nucleus of an atom contains:   a. neutrons and electrons   b. protons and electrons   c.…

A: An atom is the smallest unit of matter which is indivisible.

Q: What is the importance of knowing the isotopes

A: Either of two or more forms of the same chemical element is an isotope. Different isotopes of an…

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: The name given to the atomic particle found outside the nucleus of an atom isa. proton.b. neutron.c.…

A: The smallest particle of matter is called an atom. It is the very basic structural unit of any…

Q: What is the charge of an electron? no charge O positive neutral negative

A: Electron are subatomic particle carries negative charge and proton carries positive charge while…

Q: what is the basic unit of matter

A: Anything that has mass and is capable of occupying space is considered as matter. Different or…

Q: What is the difference between a molecule and a compound? Give an example of each

A: The branch of science which is concerned about the chemical, physicochemical processes, and…

Q: Does biochemistry differ from organic chemistry? Explain your answer.

A: Biochemistry is the branch of biology which deals with chemical process which occurs in the living…

Q: Carbon has several isotopes including 12C and 14C. These isotopes differ in the number of: O a.…

A: When two or more atoms of same element have the same atomic number (number of protons or number of…

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: Chlorine is an element with the symbol Cl. Draw and label atomic structure of chlorine indicating…

A: ATOMIC STRUCTURE  The Atoms consist of three basic particles: Protons Electrons Neutrons The…

Q: Malnourishment results when there is

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

Q: A student drew atomic models of four elements. Tin, because it has five energy levels with four…

A: Neon - It's a chemical element, it's symbol is Ne and it's atomic number is 10 , it's a nobel gas,…

Q: Oxygen has 8 protons, 8 neutrons, and 8 electrons. What is its atomic mass?(a) 8 (b) 16 (c) 24 (d)…

A: In the atmosphere, different elements, atoms, molecules are present like nitrogen, hydrogen, carbon,…

Q: Select the correct answer. Electrons, protons, and neutrons are three subatomic particles of an…

A: Step 1 The organization is a systematic arrangement of smaller and simpler components into larger…

Q: Why do chemical reactions occur faster at higher temperatures?   refers to enzymes.

A: The process in which substances react with one another with the help of chemicals is called a…

Q: Fill in this table regarding the parts of an atom. Particle Charge Function in Atom How does the…

A: Atom is the smallest unit of matter. Solid, liquid, gas, and plasma are different forms of matter…

Q: Atomic absorption spectroscopy is usually more sensitive than atomic emission spectroscopy because…

A: In case of Atomic Emission Spectroscopy (AES), when energy is absorbed by electrons, the electrons…

Q: Nonsilicates are a group of minerals that DO NOT contain what two elements? A. silver and gold B.…

A: Answer-B. Silicon and oxygen

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

A: Molecules of every substances are made up of small particles. These are called atoms. Bohr's model…

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: What is the purpose of subscripts in chemical formulas? So the chemist can multiply the chemical…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: 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: Which element is a metal? A. C B. Rn C. CI D. Cr

A: The classification of chemicals into different groups and understanding their properties individual…

Q: Knowing the atomic mass of an element allows inferences about which of the following?

A: Atom is the smallest or basic unit of matter and was discovered by sir John Dalton in 1808  Charge…

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.