What causes the colors of fireworks?

Q: Why bones glow in dark?

A: The process of conversion of one substance usually termed as reactants into new substance that is…

Q: Why does a neon sign give off red light?

A: Neon is a noble gas element. It has atomic number of 10 and atomic mass of 20g/mol. It's chemical…

Q: Chapter 4, Question 88 One hydrogen emission line has a wavelength of 486 nm. Identify nfinal and…

A: 486nm lies in Balmer series. Using following formula we can calculate ninitial and nfinal .…

Q: Write the electronic configuration and draw the ground state energy level diagram for Co3+.

A:

Q: Imagine a scenario where a pot of spaghetti boils over and you see a colored flame appear on the…

A: In analytical chemistry, a flame test is done to detect the different metal ions. The test is done…

Q: Describe two ways that atoms may combine with other atoms.

A: Atoms form chemical bonds to make their outer electron shells more stable.

Q: What are the colors of bromine and potassium permanganate?

A: To find: The colors of bromine and potassium permanganate

Q: what are the groups of Elements that are the most chemically active?

A: Reactivity of species is predicted by their valence electrons or simply known as "valency". Lesser…

Q: Write the electron configuration for palladium.

A: Electronic configuration of an element tells us about the filling up of electrons in the different…

Q: just need help with sodium and aluminum, for the boxed arrows.

A: ( Na )sodium atomic no =11 Aluminium atomic number =13 Sodium loss of one electro to get stable…

Q: <p>Why is the +2 oxidation state so common for transition metals?

A:

Q: Give the ground state orbital diagram of Mn

A: The electronic configuration of manganese, atomic number 25, is 1s22s22p63s23p63d54s2 The atomic…

Q: What chemical reaction happens when green dye changes to blue when expose to air?

A: when green dye changes to blue when expose to sir a chemical reaction happens that is redox…

Q: why iodine is dark violet in colour?

A: Visible region: The electromagnetic radiation in range of is regarded as visible region which is…

Q: Chapter 4, Question 88 One hydrogen emission line has a wavelength of 486 nm. Identify ninal and…

A:

Q: List the important periodic trends?

A: Periodic trends are the patterns seen in the chemical and physical properties of the elements across…

Q: Why do energy levels exist in atoms? a. electrons are negatively charged b. electrons are…

A: Electrons in an atom occupy different energy levels that exist in an atom.

Q: How metal gold can exhibit different colours? Explain briefly.

A: INTRODUCTION: Pure 24 karat cold has a orangish yellow color in nature. But, gold is seldom found in…

Q: 1. Assuming that the light energy to 49.4KJ, what would be the maximum wavelength of light with…

A:

Q: Write the electron configuration for the Ca atom and the predicted Ca ion.

A: The atomic nunber of Ca is 20 The calcium ion is Ca2+.

Q: Radioisotopes are used in   LEDs   some food preservation processes   some glow-in-the-dark paints…

A: Radioisotopes are the unstable form of an element that emit radiation to transform into a more…

Q: Why are transition metal ions colored in solutions. How will you use this property to explore the…

A: Elements d-block are also known as transition elements since they are present between s and p-block…

Q: Process wherein light elements such as helium and hydrogen form.

A: Process by which, Light elements such as helium and hydrogen form is?

Q: What are three reasons why nebulae contribute more to stellar formation than other regions of the…

A: Three reasons why nebulae contribute more to stellar formation than other regions of the universe…

Q: What is the electronic configuration of copper? Which electrons are important for chemical…

A: Knowing the number of electrons in the Cu atom is necessary before we can write the copper electron…

Q: how are the different colors produced including specific examples. Topic: fireworks

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: What's the number of unpaired electrons of Oxygen And how

A: Oxygen is the 8th element of the modern periodic table.

Q: What do you think is the reason why fruits/vegetables change color? Is it beneficial or bad for…

A: The reason for color change of fruits and vegetables,the steps for prevention it given below.

Q: 7. Assume that each of the following atoms reacts with ,hydrogen: (i) boron; (ii) silicon; (iii)…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: Why does Copper emitt a green color when burned based off of its electron configuration.

A: Atomic number of copper is 19. Hence the electronic configuration of copper is [Ar] 3d¹⁰4s¹.

Q: Chemistry How could you explain the difference in early and late transition metals using nickel as…

A: Generally, early transition-metals have strong resistance to undergoing reductive elimination to…

Q: eR or S configuration for ti

A:

Q: What ions are part of the silver group?

A: Different basic radicals have different solubility products and are precipitated by different…

Q: Usually, good fireworks display beautiful colors. Corresponding to the colors for chemicals used in…

A: a) Fireworks display beautiful colours because of presence of different metals ions (in form of…

Q: How can the color of light be determined? Describe the difference between red light and blue light?

A: Light is wave known as electromagnetic radiation. Electromagnetic radiation could differ in terms…

Q: The number of unpaired electrons in the electron configuration of a Te atom is_

A:

Q: Prussian blue makes your shirt whiter, why?  a. It bleaches b. It reflects blue wavelength of…

A: Introduction: Prussian blue or Berlin blue or Paris blue is produced by oxidation of ferrous…

Q: • oxygen atoms exist longer

A: In this question we have to explain that why oxygen atoms exist longer at 120-Km altitude than at…

Q: Use the periodic table to write the condensed electron configuration for In [atomic no. =49].

A: The electron configuration of an atom represented in form of its nearest noble-gas element of lower…

Q: A beaker contains a solution that absorbs wavelength at 400 nm and 570 nm. Explain what is the…

A: complementary colors are diametrically opposite each other. Thus, absorption of 400 nm light renders…

Q: The atomic radius for radioactive radon (Rn) is Density for radioactive radon (Rn) is Boiling…

A: Radon is an element having atomic number 86. Its symbol is Rn.

Q: 5. Prepare a table that lists the colors associated with the metal cations.

A: Most of the transition metal ions exhibit different colors in their aqueous solutions. The…

Q: B. Indicate the number of unpaired electrons present in Cadmium and Iron.

A: We have been asked to calculate the no. of unpaired electrons in Cd(0) and Fe(0). Inorder to…

Q: Explain the quark model.

A: The Quark Model was proposed by Gell-Mann and Zweig in 1964. They analyzed certain properties of…

Q: The number of unpaired electrons in the electron configuration of a Cr atom is.

A: Atomic number of Cr = 24  Cr has total 24 electrons

Q: Which of the following is more reactive and why? Explain using periodic trends. a) Lithium, sodium,…

A: Reactivity of Group 1 and 2 elements increases when we move down the periodic table. a . Among the…