44.All atoms of a given element have the same ________. Group of answer choices a.mass number b.number of nucleons c.atomic mass d.number of neutrons e.atomic number

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

A:

Q: A substance formed of crystals of equal numbers of cations and anions held together by ionic bonds…

A: Answer is b.)  salt.

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: Radiation is the emission and propagation of high speed electrons in an x-ray tube in the form of…

A: Introduction X-rays are a type of radiation called electromagnetic waves. X-ray imaging creates…

Q: The mass number for an isotope is 14. This isotope could be: a carbon atom with 8 neutrons an oxygen…

A: Mass number of an atom is the sum of the number of protons and neutrons in the nucleus of the atom.…

Q: 1. Where are protons found in an atom, and what electrical charge and mass do they have?, 2. Where…

A: The basic unit of normal components that make up a chemical element is an atom.

Q: What does it mean to say that a substance is radioactive?

A: A substance composed two or more elements bonded together via chemical bonds is known as a compound.…

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: How many atoms do we have?

A: There are number of factors that determine the trace of atoms in an human being ,such as…

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: 45. find the connection among the words below and choose the letter of the word which is different…

A: Gel electrophoresis is a technique used to identify, quantify, and separate nucleic acids. The…

Q: radiation does NOT include A ) gamma rays . B ) UV rays . C) X -rays. D) cosmic rays

A: D) cosmic rays

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: 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: 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: 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 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: Select the best answer or answers from the choices given: The mass number of an atom is (a) equal to…

A: The mass number of an atom is:

Q: 91. Which of the following is an inorganic compound? (A) Ethanol (B) Benzene (C) Table salt (D)…

A: Answer: (C) Table Salt In chemistry, Sodium Chloride (NaCl) means "table salt", which you use in…

Q: 16) An ion with six protons, seven neutrons, and a charge of 2+ has an atomic number of A) four B)…

A: Physical as well as chemical properties of an element depend upon its atomic structure, the number…

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: Can you please answer all of the sub questions please I really appreciate it

A: Atom is the smallest unit of matter composed of protons, electrons, and neutrons. It has two…

Q: Which of the following equations is correct?   options:   FAD+ + 2 electrons à FADH2   FAD + 2…

A: Answer -- FAD + 2 electrons + 2 protons à FADH2

Q: A sodium atom has 11 protons and 12 neutrons. What is the atomic number of sodium? Multiple Choice…

A: Atomic number is the proton number of a chemical element. It is represented by "Z".

Q: Atomic number equals the number of 8 or Охудen Atomic mass equals the number of 15.999 8. 30 3 Li…

A: An atom refers to the smallest unit of matter. It comprises protons, neutrons, and electrons.…

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: 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: In the periodic table, the elements are arrangedaccording to ________ .a. size c. mass numberb.…

A: A periodic table is a tabular table. It displays all the chemical elements in this table. Over time…

Q: 39. A salt solution of 50.0% sodium chloride (salt) consists of how many parts per million (measured…

A: INTRODUCTION Answer of question 39 is explained below.

Q: An isotope of sodium (Na) has a mass number of 22. How many neutrons does it have?a. 11b. 12c. 22d.…

A: Isotopes are members of a family of an element that all have the same number of protons but…

Q: 22) A mixture of NaCl and starch is placed in a dialyzing bag and immersed in distilled water. Which…

A: Dialysis is considered as the process, during which using filters blood is purified. This helps to…

Q: 1 WHAT IS A CATALYST

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

Q: Silver (Ag) atoms contain fewer electrons, neutrons and protons than Gold (Au) atoms. To change…

A: Answer:Turning silver into gold requires the addition of more protons into the nucleus of the atom.…

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: What if there are a different number of Neutrons? Sometimes elements have a different number of…

A: Isotope is a variant form of an element which has the same number of protons but a differing number…

Q: 1. What is the picture showing to us? Why did you say so? 2. Which instrument or device was used to…

A: Option ( 1)-- the picture is showing isotopic radioactive iodine test of thyroid by thyroid scan .…

Q: ability of impurities to lower the melting point of a sample

A: Inside a liquid, solid, or gaseous substance chemical substances that are different from the…

Q: Ammonia gas would be classified as (1) a compound (2) a mixture (3) an element (4) an atom

A: AMMONIA GAS IS CLASSIFIED AS COMPOUND.

Q: 2. When trying to identify an unknown element, a scientist determines what other elements the…

A: INTRODUCTION The number of protons in the nucleus determines which element an atom is, while the…

Q: What is a proton? A. A negatively charged particle B. A positively charged particle C. An element on…

A:

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: Alchemists were medieval scholars and philosophers who were the forerunners of modern-day chemists.…

A: The atomic number of lead is 82 while the atomic number of gold is 79. Alchemists tried to somehow…

Q: Element Atomic Number Mass Number Number of Protons Number of Neutrons Number of Electrons…

A: The periodic table consists of all the elements that are arranged on the basis of atomic number. The…

Q: A nitrogen isotope with an atomic mass of 15, and an atomic number of 7, must have: 7 neutrons and…

A: Elements are the atoms which are present in the atmosphere, there are different elements present.…

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: 52. Danny is being careful in handling acids in the laboratory. In diluting acids, she puts the…

A: A)Corrosive chemical  B)combustible chemical  C) lll and lV only D) II and III

Q: 3. High energy radiation ejects the electrons in an atom causing free radicals. Which are examples…

A: High energy radiations are part of the spectrum with high frequency, low wavelength and high energy.…