Which describes an atom of plutonium?A. It can be divided into smaller particles that retainall the properties of plutonium.B. It cannot be divided into smaller particles thatretain all the properties of plutonium.C. It does not possess all the properties of a largerquantity of plutonium.D. It has an atomic number of 244.

Q: I. Complete the table based on the information provided. Atomic No. of No. of Mass Isotopic Symbol…

A: 1. 79.         2. 118      3. 79Au197    4. Gold  5.97         6. 247    7. 97Bk247    8.Berkelium…

Q: D Only one of the following atomic notations is written correctly. a. 3478Se b. 2⁹90 73 328e d.…

A: Atomic number of an element is equal to number of protons.Mass number of an element or an atom is…

Q: Which best describes isotopes? A. Same number of neutrons, different number of electrons B. Same…

A: atoms of the same element have the same number of protons, but some may have different numbers of…

Q: Neon-22 contains 12 neutrons. It also contains a. 12 protons. b. 10 protons. c. 22 protons. d.…

A: Neon-22 means 22Ne10 where 22 represents the atomic mass of Neon and, 10 is atomic number of Neon

Q: 3. What mass of Al contains the same number of atoms as 3.0 g Pb7 a. 23 g b.0.014 g C. 3.0g d. 0.39…

A: 3. mass of Pb = 3.0 g molar mass of Pb = 207.2 g/mol moles of Pb = 3.0 g / 207.2 g/mol…

Q: . An element has three stable isotopes with masses of 27.977 amu, 28,976 amu, and 29.973 amu. The…

A:

Q: 1. Which of the following is not one of Dalton's laws? a) Atoms are indestructible. b) Atoms of the…

A:

Q: 5. has the same number of protons with number of neutrons c. acids b. isotopes d. hydrates

A: To solve this problem we have to know about isotopes.  Isotopes are the species of same element…

Q: Tin has 10 stable isotopes. The heaviest, 124Sn, makes up 5.80% of naturally occurring tin atoms.…

A: a) The number atoms of 124Sn are present in 25.0 g of naturally occurring tin is to be calculated.…

Q: An atom of atomic number 53 and mass Number 127contains how many neutrons?

A: Atomic number (Z) = 53 Mass number (A) = 127 Number of neutrons (n) = ?

Q: Which statements about subatomic particles are true?a. If an atom has an equal number of protons and…

A: (a) This is a true statement because the charge of the proton and the electron are equal in…

Q: You are asked to determine the composition of a gas. There are three componets with three different…

A: Atomic number (Z) :-  The number of protons inside the nucleus of an atom is called atomic number.…

Q: 9. Which isotope is used in many smoke detectors for homes and businesses to measure levels of toxic…

A:

Q: What is a proton ? what is a chemical?

A: A proton is a subatomic particle which is present in the nucleus of an atom along with the neutrons.…

Q: A. What is the mass number of an atom of Iron ( atomic number 26) with 32 neutrons?  B. Is this…

A:

Q: 13. Calculate the percentage of bromine atoms that have a mass of 78.9183 amu and the percentage…

A:

Q: Magnesium has an atomic number of 12. Which of the following statements is true of a neutral…

A: Correct answer is (a.) It has 12 protons, 12 electrons, and 12 neutrons. Atomic number (Z) = number…

Q: Which of the subatomic particles contributes almost no weightto an atom?a. protons in the electron…

A: The subatomic particles which does not contribute to almost no weight of an atom has to be given.

Q: Which statements are consistent with Rutherford’s nuclear theory as it was originally stated? Why?a.…

A: Rutherford's atomic model also named as "nuclear model". As per Rutherford's nuclear theory, any…

Q: In any neutral Adam there are equal numbers of? A. Neutrons and electrons B. Protons and neutrons…

A: Neutral atom are those having not any charge. They are wholely neutral

Q: Strontium naturally exists as 4 stable isotopes with masses of 84, 86, 87, and 88. Which statement…

A: Elements exist in different isotopic forms and each form has its own abundance.

Q: Atomic number of an element = number of:        2.  Atomic mass of an element = number of    ..…

A: Atomic Number: It is defined as the total number of protons present in an atomAtomic Mass: It is…

Q: 31. Isotopes of an element have the same number of (1), and different number of _(2). A. neutrons…

A:

Q: Which equation is true of an atom with no electrical charge? O A. Number of electrons = number of…

A: Here given options regarding an atoms.we are asked which is true for an atom with no electrical…

Q: 17.A hypothetical element X is found to have an atomic mass of 37.45 amu. Element X has 2 isotopes,…

A: Given that mass of X-37 = 37.24   Let x be the mass of the other isotope  Fractional abundance of…

Q: A fictitious element Z has an average atomic mass of 222.93 u. Element Z. has two naturally occuring…

A: Average atomic mass = 222.93 uMass of first isotope = 224.36 uRelative abundance of first isotope =…

Q: Which of the following statements are true of chemical reactions? a. The number and types of atoms…

A: A chemical reaction will occur between two or more reactants, and during the reaction, law of…

Q: 4. An atom is electrically neutral because the A. number of protons equals the number of electrons…

A: An atom consists of 2 sub- atomic particles : 1. Electrons : Electrons are negatively charged…

Q: What is the representative particle, mass(g), no. of particles of carbon dioxide

A: 1mole of any substance contains 6.023*1023 molecules or particles, it is also called one avagadros…

Q: A certain element X has four isotopes. • 4.350% of X has a mass of 49.94605 amu. • 83.79% of X has a…

A: From part B, Average atomic mass of element X = 52 amu Mass of electron = 9.1× 10-31 kg mass of an…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.