Fill in the blanks using the following terms: atom, element, ion, isotope, molecule, compound. a. A substance which cannot be broken down into simpler substances by ordinary chemical means: b. The basic particle which makes up an element: c. A substance formed when two or more different elements combine: d. Basic particle of a compound; combination of two or more atoms, either the same or different: e An atom of an element which has the same number of protons, but a different number of neutrons from the other atoms of the element: f. An atom (or group of atoms) which has a charge, either positive or negative: thanks

Q: 1. What is the difference between carbon-13 and carbon-14? a. The number of electrons b. The number…

A:

Q: A) If a cube from this element contains 2.35x1022 atoms, calculate the mass ( in grams)

A: Mass of 2.35×1022 atoms can be calculated by knowing the fact that one mole contains 6.022×1022…

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: Isotopes & lons Worksheet Answer the following questions below using your notes or your book. 1.…

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Q: An element has four naturally occurring isotopes with the masses and natural abundances given here.…

A: Given,

Q: 9. What 9. What is the difference between a molecular element and an atomic element? List the…

A: Element is a substance which cannot be broken down into simpler unit.It is purest form any…

Q: Tony stark is trying to make new element, and smashes together an atom of carbon-12 and an atom of…

A: carbon= C612Atomic number = 6Number of protons = 6Number of electrons = 6Mass number  = 12Number of…

Q: Variations in average atomic mass may be observed for elements obtained from different sources.…

A: Given information: Assuming Mass of boron sourced from turkey = 10.0129 amu Mass of boron obtained…

Q: Imagine that you were working in the lab at Amgen (a biotech compan Thousand Oaks) and you discover…

A: Isotopes of elements contains same number of protons but different number of neutrons.

Q: Consider bromine, which occur as a mixture of two isotopes: bromine-79, with natural abundance of…

A: Given: The abundance of Br-79=50.7% The abundance of Br-81=49.3% The atomic mass of Br-79=78.92 amu.…

Q: olo There are only two naturally-occuring stable isotopes of boron, the masses of which are listed…

A: We will calculate the natural or relative abundance of Boron isotopes. we will apply simple mole…

Q: Q1:Silicon has three naturally-occurring isotopes: 92.23% of 28Si, with an atomic weight of 27.9769…

A: Given data,Atomic weight of 28Si=27.9769amuPercent isotope of 28Si=92.23%Atomic weight of…

Q: Tony stark is trying to make new element, and smashes together an atom of helium-4 and an atom of…

A: When an atom is smashed into another atom, the reaction is termed a nuclear fusion reaction. Such…

Q: Consider the following atoms in which X represents the chemical symbol of the element: 19/42X,…

A: Atomic number gives the number of protons present in the nucleus or the number of electrons present…

Q: Is the statement inconsistent with Dalton’s atomic theory as it was originally stated? Why? The…

A: Yes,the statement that formation of a compound often involves the destruction of of one or more…

Q: e) A strange sample has 3 isotopes with abundances 1.4%, 24.1% and 74.5%. The atomic masses of the…

A: The average atomic mass of an atom is calculated by the formula: Avg atomic mass=∑Relative…

Q: A particular element has 2 stable isotopes. If the first isotope has a mass of 14.754 amu and an…

A: Given that: Element has two stable isotope Mass of first isotope(m1) = 14.754amu Abundance of first…

Q: Elements "X" and "Y" react in two different ways to form two different compounds. 64.128g of "X"…

A: Law of Definite Proportion : This law states that every components in a compound will always contain…

Q: An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99…

A: Given, Natural abundances (in %) with isotopic masses (in amu )90.92% with 19.99 amu0.26% with 20.99…

Q: Which is a compound? A. A piece of pure zinc metal B. A molecule made of nitrogen and oxygen C. An…

A: Compound: A molecule consisting of two different elements is called compound

Q: Which scientist suggested that atoms combine in different whole-number ratios to form compounds but…

A: Dalton explain first of all the Atomic theory of atom. In 1808 he put forward a theory which is…

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: Please answer question a & b both.

A: Average atomic mass can be determined by the equation given below:

Q: Which of the following was not postulated by Dalton? Group of answer choices A, Atoms of one element…

A: The Dalton atomic theory was the first attempt to describe the structure of an atom. According to…

Q: There are only two naturally-occuring stable isotopes of boron. The mass and natural abundance of…

A: Given that boron has two naturally occurring isotopes. One of them is B-11 with atomic number 5. The…

Q: Which postulate of Dalton's theory is violated by the following observations: 59.95% of one sample…

A: c)  In a given compound, the numbers of atoms of each type (and thus also the percentage) always…

Q: The element nitrogen has two naturally occurring isotopes. One of these has a mass of 14.0 amu and a…

A: Given data contains, Atomic mass of isotope-1=14.0 amu Percent abundance of isotope-1=99.63% Atomic…

Q: There are only two naturally-occuring stable isotopes of lithium. The mass and natural abundance of…

A: The variants of a certain element due to difference in the number of neutrons present in them are…

Q: 24 - Which of the following refutes Dalton's statement: "The smallest building block of an element…

A: Dalton proposed his theory in 1808 in which he said that atom is the basic unit of matter and also…

Q: Two samples of carbon tetrachloride are decomposed into thier constituent elements. One sample…

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Q: 3. The atoms in the previous question are isotopes of each other. Based on this information, list…

A: Given that, Atoms are isotopes of each other. What are the requirements for two atoms to be isotopes…

Q: Which of John Dalton’s theories given below were found to be INCORRECT? 1. the atoms of elements…

A: Dalton's atomic theory was the first theory to describe all matter in terms of atoms and their…

Q: Gallium has two naturally occurring isotopes with masses 68.93 amuamu and 70.92 amuamu and has an…

A: Intensity % is proportional to % abundance of each isotope.  Hence in order to correlate %…

Q: How many atoms would be present in a 894.22 amu sample of an element that weighs 11.28 amu per atom?…

A: Here we are required to find the number of atoms present in 894.22 amu of sample

Q: QUESTION 31 A substance composed of two or more elements in a fixed, definite proportion is O A. a…

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Q: There are only two naturally-occuring stable isotopes of chlorine. The mass and natural abundance of…

A: Average atomic mass (AAM) :  AAM =isotopic mass x abundance 100   To find the mass of second…

Q: Question attached

A: Isotopes of an element have the same number of protons (atomic number) and a varying number of…

Q: Why are the atomic masses on the periodic table not whole numbers? They are a weighted average of…

A: Interpretation: We have to tell why atomic masses are not whole numbers.

Q: 4) Chromium has four isotopes. Chromium-50 (mass of 49.946 amu and 4.35% abundance), chromium-52…

A: Given,  The chromium four isotopes are Chromium-50, (mass= 49.946 amu, % of abundance = 4.35% ),…

Q: The average mass of nitrogen is 14.0067. The atomic masses of the two stable iotopes of nitrogen are…

A: Given : Atomic mass of nitrogen = 14.0067 amu Atomic mass of 14N = 14.003074002 amu Atomic mass of…

Q: On the planet Invertios, boron has two isotopes as follows: Isotope Mass (amu)…

A: Many naturally occuring elements exists as more than one isotope. On the basis of their percentage…

Q: 1. The atoms of elements A (blue) and B (orange) form two compounds shown here. Do these compounds…

A: Given diagram is : Atom A is denoted = Blue  Atom B is denoted = Orange  Do these compound obey law…

Q: 01. Suppose you have atoms A and B. Which of the following is not true? A. All matter is composed of…

A: 1)  A) True . all matter is composed of small particles called atoms . B) false . Nuclear…

Q: 14. One compound of elements X and Y contains 35.2% X (by mass); another compound contains 24.6% X.…

A: The chemical formula of compound is represented by the atoms of the elements as their chemical…

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.