Complete the following by choosing the correct word. 13 The atomic theory was given by c2 and sc have different number of : and therefore called as : The lightest fundamental particle is and it is found moving in the * The number of a shell is determined by quantum number where as a sub-shell is determined by * quantum number.The maximum number of electrons is 6 in a p

Q: 1. A scientist collects data on a sample of Lithium. He determines that 92.3% of the sample is…

A: The atomic mass of lithium = 6.938923 amu

Q: Which pair represents a set of isotopes? O A. calcium-48 and titanium-48 O B. 74se and 82se O C.…

A: Isotopes : Isotopes are the atoms of same  element with same atomic number but different number of…

Q: As we saw in the previous problem, lithium has two naturally occurring isotopes: Li-6 (natural…

A: The mass which is closest to the atomic mass of Li has to be given.

Q: An element has three naturally occurring isotopes with the following abundances and masses::…

A: Since the atomic mass of any element is given by the average mass of its isotopes Hence the atomic…

Q: PERIODIC TABLE of the ELEMENTS 1 2 Atomic Number 1s H He Symbol 1.008 1 2 4.003 I 11 Relative atomic…

A: To address the problem regarding the mixture of ideal gases, we'll start by defining each…

Q: There are electrons and +2 neutrons in the ion of Cd Atomic number: 48 Mass number : 112 O A. 46, 48…

A: Given ion,    Cd2+ ion    Mass number = 112    Atomic number = 48

Q: Calculate the atomic mass element "X" if it has 2 naturally occuring isotopes withthe following…

A: Percent abundance of X-51 = 67.88 %  Percent abundance of X-53 = 32.12 %

Q: 1. Atomic Structure. 106 a) 46 Pd*2 b) 232 92 U

A:

Q: An isotope of iron has a positive charge of 2 and 24 neutrons. How many electrons does it have? a.…

A: They have the same atomic number and position in the periodic table, but differ in nucleon numbers…

Q: An unknown element X has the following isotopes: 25X (80.50% abundant, mass = 25.03 amu) and 27X…

A: isotopes of X 25X: abundance - 80.50%                       (P1) = 80.50/100 = 0.8050          mass…

Q: elements listed, and using a periodic table, how many protons, electrons and neutrons does each…

A: Given b. Iridium c. lodine d. Radium We need to write the number of electron , protons and neutrons…

Q: Using the atomic symbol below, how many neutrons are in this isotope? 2357 92 iments

A: The number of neutrons is equal to the difference between the mass number of the atom (A) and the…

Q: 13. How do humans use subatomic particles to the benefit of society? Provide an example and explain…

A: Subatomic particles are defined as a group of smallest particle which defined whole atom.

Q: Consider the two isotopes fe-54 and fe-56 how do they differ from each other? Uranium-235 is the…

A: If " X " is an element . Then it is generally represented as  AZX  Z = atomic number = number of…

Q: Isotopes have the same number of a. Protons; electrons Ob. Neutrons; protons c. Electrons, protons…

A: Isotopes are two or more forms of same element which consist of equal numbers of protons but…

Q: Which one of the following statements about atoms and subatomic particles is correct? OA. The…

A:

Q: Electron- Proton- Atomic number- Atomic mass- Neutron- Nucleus- C. Isotopes or Different Elements?

A: A typical atom is made up of subatomic particles that include electrons, protons, and neutrons.…

Q: From the results of his gold foil experiment, Rutherford concluded that   Group of answer choices A.…

A: From the results of his gold foil experiment, Rutherford concluded that atoms are composed of a…

Q: MISSED THIS? Read Section 2.4 (Pages 55-57). A student re-creates the Millikan oil drop experiment…

A: Given Drop 1 =  2 α Drop 2 = 4/3 α Drop 3 = 10/3 α Drop 4 = 4 α The relative charges of an oil drop…

Q: An element has two naturally occurring isotopes. Isotope 1 has a mass of 190.9606 amu and a relative…

A: Since,    Average Atomic mass=Σmass of Isotope×% of Isotope100

Q: Which one of the following is the chemical symbol of an atom with 17 protons and 20 neutrons?

A:

Q: 2. Which of the following best describes an element? a. A neutral substance consisting of a cation…

A: Element is a substance which consists only of atoms having same atomic number and hence same…

Q: Part D an isotope with a mass number of 52 and 28 neutrons Express your answer as an isotope. ΑΣφ ?…

A: Write the symbol of the given isotopes ----

Q: Element "X" has a mass# of 53. How many neutrons does it have if its atomic# is 27

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: Consider the following data for the element Z. what is a) percent of abudance and average mass (in…

A: Every atom in periodic table has some atomic mass and atomic number. When atomic number of two…

Q: Element X has 6 isotopes. What is the average atomic mass? =) Isotope 1 has a mass of 88 with a…

A: Data given: Mass of isotope 1, m1 = 88, Relative abundance of isotope 1, r1 = 11% Mass of isotope 2,…

Q: 5. Complete the following table of neutral atoms of isotopes. Nuclear Symbol 90 39Sr 104 154 Atomic…

A: atomic number = proton numberfor neutral atoms, proton number = atomic number = electron numbermass…

Q: 1. The atomic number of lithium is 3. How many neutrons does an atom of lithium have if it is…

A: The objective of these questions is to understand the atomic structure of different elements and…

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.