Why are atomic numbers significant in the study of elements?

Q: How do you calculate the atomic mass of a specific isotope of an element?

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Q: Define isotope

A: Define isotope

Q: what is used to determine an atom's weight and atomic number?

A: There are several use of atomic number and atomic weight of any atom as__ A=Z +n  Where  A is atomic…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: We are given relative abundance of two isotopes of Sn. We have to find its average atomic mass.

Q: How are the concepts of an atom and an element related? What causes elements to differ?

A: A particular atom will have the same number of protons and electrons and most atoms have at least as…

Q: Differentiate between different isotopes of an element?

A: A number of atoms of some elements have been identified, which have the same atomic number but…

Q: Atoms of the same element that have different atomic masses are called isotopes

A: An isotope is a variation of an element that possesses the same atomic number but a different mass…

Q: If two different isotopes have the same atomic number, it must mean that

A: The word isotope is derived from a combination of two words- ‘iso’ means ‘same’ and ‘tope’ means…

Q: The relative atomic mass of antimony is 121,8. Antimony exists as two isotopes - antimony 121 and…

A: Given, The relative atomic mass of antimony is 121.8 and it's two isotopes  antimony 121 and…

Q: A natural sample of chromium, taken from the ground,will contain four isotopes: Cr-50, Cr-52, Cr-53,…

A: Chromium has four stable isotopes which are Cr-50, Cr-52, Cr-53, and Cr-54. Isotopes are the atoms…

Q: define atomic mass and atomic number?

A: Atomic mass is the quantity of matter contained in an atom of an element. It is expressed as a…

Q: Explain the role of atomic number in determining the identity of an atom.

A: Atomic number(Z) is may be defined as the number of protons present in a neutral(uncharged) atom,…

Q: Determine the number of protons and electrons in F^-

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Q: How many neutrons are in the nucleus of an atom with an atomic number of 25? (use Periodic Table for…

A: Number of protons = atomic number   Number of electrons = atomic number (in case of neutral atom)…

Q: How are the isotopes of an element different from one another?

A: Isotopes are atoms of the same element which are different in mass. That means They have the same…

Q: what do you think the atomic number represents? WHICH OF THIS ANSWER IS CORRECT A)number of…

A: An Atom is made up of 3 sub-atomic particles. 1) Electron  2) Proton  3) Neutron

Q: How do you know how many electrons and neutrons are in a single element with just knowing the atomic…

A: Although information about atomic number and mass number, both are needed to determine the number of…

Q: An atom has a mass number of 30 and 16 neutrons. What is the atomic number of this aton Express your…

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Q: Does the number of protons define the element? How?

A: Does the number of protons define the element? How?

Q: Why was it more difficult to discover neutrons than protons or electrons?

A: Neutrons was discovered by James Chadwick in 1932, after the discovery of electrons and protons.

Q: Define atomic numberand mass number.Which can varywithout changing the identity of the element?

A: Atomic number (Z) is defined as the number of protons present in the atom. Mass number is defined as…

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: Explain how the existence of isotopes is related to the fact that atomic masses are not whole…

A: Isotopes: Compounds that are having same atomic number but the different mass number is called…

Q: How do I find a total charge of an atom

A: The charge of an atom is the number of protons minus the number of electrons. Usually, these two…

Q: Indicate the isotope having 12 protons, 11 neutrons and 12 electrons.

A: We have to predict the element symbol.

Q: In what way are isotopes of a given element always different? In what way(s) are they always the…

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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: Define atomic mass

A: The basic unit of matter is an atom. The physical and chemical nature of an atom is defined by its…

Q: Atomic Atomic Number # of Mass # of # of Symbol Name of Element Number Protons Neutrons Electrons 11…

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Q: What does the atomic structure or the atomic number tell us about the identity of an element?

A: We have to tell what does the atomic structure or the atomic number tell us about the identity of an…

Q: An hypothetical element has the following distribution of natural occurring isotopes:      60.795%…

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Q: Does uncertainity principle is applicable to all subatomic particles?

A: For the subatomic particles, their exact position and the exact velocity cannot be determined at the…

Q: Distinguish isotopes and calculate atomic weight

A: An atom consists of three sub-atomic particles known as electrons, protons and neutrons. The number…

Q: Explain how the isotopes of an element are alike and how they are different.

A: An atom is composed of protons, electrons, and neutrons. The protons and neutrons are present in the…

Q: Define atomic number, atomic weight, and isotope.

A: Elements are placed in the increasing order of their atomic number in the horizontal rows and…

Q: define atomic number and atomic mass? Who discovered the concept of atomic numbes?

A: The atomic mass of an element is defined as the total mass of one atom of an element. Its unit is…

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

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Q: d. A sample of potassium atoms is made up of 54% 39K and 46% 41K. Use this information to find the…

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Q: Element: Lead Name of isotope Number of Number of Abundance Abunda Protons Neutrons Mass (amu) (%)…

A: We are given isotopes of lead(Pb), and we have to find the number of protons, neutrons and %…

Q: The atomic mass of lithium is 6.9 41AMU. Lithium has two natural occurring isotopes Li-6 in…

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Q: 3. Which element has an atomic number of 50?

A: Atomic number may be defined as the number of protons present in the nucleus of an atom.  It is…

Q: How many electrons are there in an atom of 1?

A: The element can be represented as zXA or zAX Where z= atomic number it indicates number of protons…

Q: How are the elements formed with the concept of atomic number?

A: Because in a neutral atom, number of protons = number of electrons = atomic number (Z)

Q: what element has 27 electrons and 29 neutrons ?

A: Element consist of Atoms. Atoms may consist of subatomic particle that is electron, proton and…

Q: 32. An atom contains 27 neutrons and 23 electrons. What element is this atom?

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Q: 13. Determine the number of neutrons for the following isotopes: A) Cr-53 Number of neutrons B) K-37…

A: First find out the atomic number for both elements and using that, find out number of neutrons in…

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.