In the periodic table, do the chemical properties change more than through a period or through a group?

Q: the symbol of the halogen with the most electrons Express your answer as a chemical symbol. ΑΣφ ?

A:

Q: 5. In a chemical formula, which element is listed first?

A: In a chemical formula, which element has to be listed first has to be given.

Q: (T/F) The atomic number of an elements tells us the number of protons and neutrons in an element.…

A: Hii there, since there are multiple sub parts posted. We are answering first three sub parts. If…

Q: 103 A neutral atom of rhodium-103 (0Rh) contains how many protons, neutrons, and electrons?

A: Given,  A neutral atom = Rhodium  (a). How many protons = ? (b). How many electrons = ? (c). How…

Q: Two compounds of Cl and X are found to have molecular masses and % Cl, by mass, as follows: 137…

A: In first compound, Cl is 77.5 % and the total mass of the compound is 137 u. Calculate the mass of…

Q: In the symbol below, x is, A the mass number B the number of electrons the number of neutrons D the…

A: Mass number is the total of number number of protons and neutrons in an atom. Atomic number…

Q: 2. Bromine has two naturally occurring isotopes (Br-79 and Br-81) If the natural abundance of Br-79…

A:

Q: All the chemical elements may be derived from which single element?

A: All the chemical elements may be derived from one single element. That has to be given below.

Q: can you take a look at two elements located into different corners of the Periodic Table - Lithium…

A: An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The atomic…

Q: In our modern view of matter and energy, is the law of mass conservation still relevant to chemical…

A: In our modern view of matter and energy, the law of mass conservation still relevant to chemical…

Q: What is an atom? O It is composed of protons and electrons but not neutrons O It is the smallest…

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Q: The element lithium has two stable isotopes, lithium-7 with an atomic mass of 7.0160 u and lithium-6…

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Q: Which statements about subatomic particles are false?a. Protons and electrons have charges of the…

A: The particles utilized to form any particular atom are named "subatomic particles" and such…

Q: Approximately how many elements are listed in the periodic table? How many can be found in nature?…

A: Periodic table of elements is arrangement of elements in tabulated form. In this, the elements are…

Q: Which pair of atoms constitutes a pair of isotopes of the same element? 29. 14 28 58 B) X 26 A) X…

A: Isotopes are defined as the elements having same atomic number but different mass number.  X1328…

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: 2.1. In the following drawing, the green spheres represent atoms of a certain element. The purple…

A: Hey there thankyou for the question.    By law of constant proportion all samples of a pure compound…

Q: Differentiate between an atom, an element, and a molecule.

A: Element - are naturally occurring species  Atom-building block of molecule  Molecule - made up of…

Q: Cerium is the most abundant rare earth metal. Pure cerium ignites when scratched by even a soft…

A: The Isotopes given are Ce-136(atomic mass=135.907 amu), Ce-138(atomic mass=137.905 amu),…

Q: What are isotopes? What is the percent natural abundance of isotopes?

A: Isotopes are stable as well as radioactive in nature.

Q: Explain the following statement: The smallest particles unique to an element may be atoms or…

A: An atom is formed of three main sub-particles namely, electrons, protons, and neutrons. Protons and…

Q: Imagine an alternate reality. The Thomson cathode ray experiments arrived at a charge to mass ratio,…

A: Here, we have to determine mass of electron.

Q: Describe the Millikan oil drop experiment in 50 words or more, especially it'a process. What…

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Q: What is the symbol for the isotope of "Fe that possesses 31 neutrons? Express your answer as a…

A: To find: The symbol of the isotope of  55Fe which posses 31 neutrons.

Q: Which statement about subatomic particles are false? Protons and neutrons have charges of the same…

A: Proton, neutron and electrons are the subatomic particles present in an atom.

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.

Q: the history of the discovery of hydrogen and what properties they observed to identify it

A: Position of hydrogen in periodic table:   Hydrogen is regarded as rogue / disputable element because…

Q: A platinum atom has a radius of 177 pm. If you could string platinum atoms like beads on a thread,…

A: Given that, Radius of Pt-atom = 177 pm =177×10-12 m= 177×10-10 cm =1.77×10-8 cm Length of necklace =…

Q: 72.691g        84.321g    Potassium phosphate  à  Iron (II) phosphate  Write the chemical formula…

A: Given, (a) Potassium phosphate (b) Iron (II) phosphate

Q: Which of the subatomic particles participate in the chemical bonding between atoms?

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Q: Which of the following statements about subatomic particles are true, and which are false? Drag the…

A: Any atom is made up of 3 subatomic particles. 1) electron  2) proton  3) neutron

Q: 3. What type of substances are magnesium chloride, sodium chloride, and calcium chloride?

A: The question is based on the concept of chemical bonding. we have to identify the nature of…

Q: Describe what you think happens on an atomic scale when you push a pencil across a piece of paper…

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Q: Which statement about subatomic particles are true? Electrons are attracted to protons.

A: Electrons are negatively charge and protons are positively change particle, so by this opposite…

Q: What is the edge length (in cm) of a titanium cube that contains 2.55 * 10(24) titanium atoms? The…

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Q: Identify as true (T) or false (F): | Minerals separating from flowing water as stony deposits…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: True or false is an atom is the smallest building block of matter

A: False

Q: 2 Most of the elements are solids at room temperature. Give three examples of elements that are…

A: Elements: It is a pure substance that consists of atoms having the same number of protons in their…

Q: In the periodic table, calcium, element 20, is surrounded by elements 12 magnesium , 19 potassium,…

A: The most resemple element of calcium atom is magnesium and Strontium.

Q: What is a period in the periodic table? From what does it derive its name?

A: The elements are arranged in a periodic table. The properties of elements have been studied and…

Q: Bromine has two isotopes, Brand Br, whose abundances are (50.69% and 49.31%). Calculate the average…

A: MBr-79 is the molar mass of bromine-79 = 78.9183 u MBr-81 is the molar mass of bromine-81 = 80.9163…

Q: How many protons, electrons and neutrons does Cl1?

A: In the question, we have been given a halide ion and we need to calculate the number of electrons,…

Q: How many of EACH element are there in this chemical formula? MgBr, Mg: Br:

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Q: Mass

A:

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.