The property that distinguishes an atom of one element (carbon, for example) from an atom of another element(oxygen, for example) isa. the number of electrons.b. the number of protons.c. the number of neutrons.d. the combined number of protons and neutrons.

Q: Transition metals play several roles in biological processes and in medicine. Why does biology…

A: Transition metal:It can be defined as chemical elements that possess a valence electron. Valence…

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: Hydrogen bonds are formed as a result of which of the following?a. ionic bondsb. nonpolar covalent…

A: Bond is the link between molecules or atoms, bonds form due to the attraction between different…

Q: The atomic number of sulfur is 16, Sulfur combines with hydrogen by covalent bonding to form a…

A: Every element has smallest unit of matter called atom that retain the properties of an element.…

Q: What are the two types of chemical reactions

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

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: Which is true of electronegativity? O if two elements have the same electronegativity, they will…

A: Chemical energy is the energy which is present between the atoms and molecules, when two atoms are…

Q: Which statement is true of all atoms that are anions?(A) The atom has more electrons than…

A: An atom is composed of three major particles. They are proton, neutron and electron. Protons are…

Q: Explain how electronegativity applies in a water molecule

A: Water (H2O) is polar because of the bent shape of the molecule. The electronegativity value of…

Q: Compare and contrast the types of atomic interactions that lead tothe formation of molecules

A: Molecules are made when two or more atoms combines together. This linkage of atoms serves…

Q: Isotopes differ in theira. number of protons.b. atomic number.c. number of neutrons.d. number of…

A: Isotopes are called atoms of the same element, which vary in their neutron numbers. Most isotopes…

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: The most abundant form of carbon has an atomic number of 6 and a mass of 12. A small amount of…

A: Atom is the smallest unit of matter that can be divided into three namely, electrons (the negatively…

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: 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: Which is not a property of water? a. Low specific heat b. Hydrogen bonds form a lattice c.…

A: Water is a tasteless, colorless, odorless liquid, made up of two atoms of Hydrogen and one atom of…

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: 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: Choose the best answer for following question. An atom that has two electrons in the valence shell,…

A: The name of the element is Magnesium. Its atomic no is 12 and the electronic configuration is 2,8,2.…

Q: Covalent bonds involve_____ a)electrostatic attraction b)sharing electrons c)valence…

A: Bond polarity is the separation of electric charge across a bond, which makes the molecule to have…

Q: The atomic number gives thea. number of neutrons in the nucleus.b. number of protons in the…

A: An atom is defined as the smallest particle of an element. They constitute of neutrons, protons and…

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: This occurs when the cations and anions are attracted to the positive and negative ends of water…

A: The type of interaction where two molecules of opposite charge with each other i.e. a cation…

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

A: Electrons are negatively charged.

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: 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: 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: 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: 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: Carbon is particularly well suited to be the backbone of organic molecules because (a) it can form…

A: Carbon is a chemical element with an atomic number of 6. Carbon is non-metallic and has four…

Q: Atoms are incredibly tiny, so small that most microscopes can't even see them, but atoms themselves…

A: Atom: Atom is the smallest unit of matter. It is the basic building block of matter. Atom possesses…

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: 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: If an electron spends more time with one atom in a molecule and less time with another, the atom…

A: Electrons are charged particles and thus they interact strongly with the nuclei and the electrons of…

Q: Consider an electron transition from n = 3 to the n = 2 energy level in a hydrogen atom resulting in…

A: The electrons of hydrogen atoms revolve around their nucleus. They occur as a set of electrons with…

Q: Clearly explain how hydrogen bonds are formed, using water as an example.  [Hint: Include the…

A: Water is an inorganic compound that is used as a universal solvent. Water is an odorless and…

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: Tests Principle behind functional group that will give evidence of a References the test a positive…

A: Generally carbohydrates are defined as polyhydroxy aldehydes or ketones . carbohydrates  also are…

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: 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…

Q: Explain why some carbohydrates turn blue with iodine and some do not. Be specific regarding the…

A: Iodine test is the common qualitative test given by the amylose. Starch is made up of two types of…