Isotopes means; same element can have different masses. O False O True

Q: Dalton proposed an Atomic Theory in which all atoms of an element are identical and have the same…

A: Dalton proposed an Atomic Theory in which all atoms of an element are identical and have the same…

Q: Isotopes of the same element have different mass numbers? true or false

A: isotope are  two or more species of element  with the same atomic number and position in the…

Q: How are isotopes of a particular element alike? How are they different?

A: Isotopes are atoms of the same element that have different numbers of neutrons but the same number…

Q: Based on the following word descriptions,write the formula for each of the indicated substances.a. a…

A: A formula of any compound which represents number of the all types of atoms of that compounds…

Q: Bromine has two naturally occurring isotopes. Bromine-79 has a mass of 78.9183 amu and an abundance…

A:

Q: 19,9924 AMU is the mass of one of the three isotopes of neon equaling 90.4838%. One of the other two…

A: Here, the three isotopes of Neon is

Q: ntribution of James Chadwick to [ Choose ] velopment of the atomic model

A: Atom is made up of very tiny particles which is indestructible says in Dalton's atomic theory .

Q: postulate in the atomic theory did the discovery of isotopes contradict

A: The postulates of atomic theory are shown below: Matter is made up of small indivisible particle is…

Q: A sample of Fe weighs 37.2 grams. Will a sample of S that contains the same number of atoms weigh…

A: Weight of Fe sample = 37.2g Atomic mass of Fe = Atomic mass of S = Avogadro's Number =

Q: A new element is discovered and has three stable isotopes. The atomic weight of the element is…

A: When an element's existence in earth occurs in more than one form (isotopes), the mass of that…

Q: Potassium has 2 naturally occurring isotopes. 39K has a mass of 38.96 amu and accounts for 93.26% of…

A: Potassium has two naturally occurring isotopes, 39K and 41K. Given that 39K has a mass of 38.96…

Q: U-238 is naturally the most abundant form of uranium; however, only U-235 can be used as fuel in a…

A:

Q: The atomic weight of Ga is 69.72 amu. There are 69.0 amu, and Ga, with a weight of 71.0 amu. The…

A: Let the percentage of the isotope 69Ga be =x%Then,The percentage of the isotope 71Ga is =(100−x)%

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.