Purple spheres represent iodine atoms, white spheres represent hydrogen atoms, and all of the molecules are gases. (Figure 1)

Q: Which one of the following is an example of an element? A) brass B) nickel C) bronze D) sterling…

A: An element is a pure substance that cannot be broken down into simpler substances by means of any…

Q: Is Au the symbol for gold?

A: Aurum is tge latin word for gold.

Q: A new element named catsium is added to the periodic chart. One of the numbers written below the…

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Q: Using white and black circles to represent different kinds of atoms, make a drawing that accurately…

A: Given samples of matter,         A solid element, a liquid compound, and a heterogeneous mixture.

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A: Dear Student since you have posted multiple parts question..... we will solve the first question…

Q: What is the chemical symbol of the element found in the 4th family and 5th period of the periodic…

A: Carbon family is called 4th family and there elements are C , Si , Ge , Sn , Pb , Fl

Q: 45. List the symbol and atomic number of each element.(a) carbon(b) nitrogen(c) sodium(d)…

A: The atomic number of an element represents the number of protons or the number of electrons present…

Q: X Select the 4 properties of metals * Hard Conducts electricity Smells bad Does NOT conduct heat…

A: Metals are those substances which usually lose there valence electrons to form compounds.

Q: Figure 3. Diatomic molecules of the element chlorine, Cl2. This Figure 4. Molecules of the compound…

A: ⇒All atoms are made up of tiny particles ie,protons,neutrons and electrons⇒A n element is a pure…

Q: Atoms of the same type can have different mass numbers. These atoms are called "isotopes". Consider…

A: The detailed solution is given below.

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Q: Density of the hydrogen atom Use the information below to calculate the density of the hydrogen-1…

A: Given : Radius of hydrogen atom = 53 pm Since 1 pm = 10-10 cm Hence radius of hydrogen atom in cm =…

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A: The periodic table of the elements is an ordered arrangement of the chemical elements into rows and…

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Q: An atom of a particular element has a volume of 7.8*10^-31 m^3. What is this volume in cubic…

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Q: I Review I Constants I Periodic Table Learning Goal: To understand the arrangement of the periodic…

A: Metals are malleable and ductile. They  are denser than the other elemental substances. An element…

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Q: John Dalton developed an atomic theory from which our current theory was built off. Which of the…

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A: 1 Billion atoms of Gold weigh  = 3.3 × 10-¹³ g

Q: Is this impossible to have element or not? n = 7 ; l = 6 ; m = 5 ; s = - 1/2

A: An electron has wavefunction which is an address

Q: Write the symbol for element and classify it as a metal, nonmetal, or metalloid.tin

A: The elements which lie on the left side or middle of the periodic table are classified as metals.…

Q: Magnesium, Mg Strontium, Sr Barium, Ba E Radium, Ra :::: :::

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Q: +, - nich of the following correctly indicates whether the solid represented by the particulate…

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A: Fourth family is called carbon family. The element present in fifth period of fourth family is Tin.…

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Q: is chlorine gas an element ?

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Q: Which of the following could describe an element?   I II III All of them None of them

A: Matter: Matter can be defined as any component which occupies space and has mass.

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A: Given, Helium is an inert gas, meaning that it doesn't readily combine with other elements.

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A: Solving for Integer Value of m 37 −150/m = −13

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Q: Recognize the important subdivisionsof the periodic table: periods, groups(families), metals, and…

A: Recognize the important subdivisions of the periodic table: periods, groups (families), metals, and…

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Q: Name the element which has 26 electrons, 29 electrons, 26 protons

A: General way of element presentation:. AxZ where z is no. Of protons A is no. Of neutrons+protons

Q: 2.) Suppose you're attempting to measure the density of a liquid that is highly volatile (it…

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A: Given: Five elements, (a) Potassium (b) Iodine (c) Magnesium (d) Argon (e) Sulfur

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.