The atomic radius for radioactive radium (Ra) is Density for radioactive radium (Ra) is Melting point for radioactive radium (Ra) is

Q: Where is the lithium located in the periodic table and why is it located where it is

A: Lithium is located in the 2nd row and 1st group in the periodic table.

Q: what is the electron configuration for nitrogen

A: Nitrogen comes under group 15 nitrogen family with the elements Nitrogen, Phosphorus, Arsenic ,…

Q: Use the following key to classify each of the elements below in its elemental form:

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

Q: process

A: Dear student I have given answer to your question in the image format.

Q: What is radioactive iodine?

A: Interpretation: What is radioactive iodine is to be determined.

Q: Describe the formation of heavier elements during stars' formation and evolutions; Give at least 10…

A: Introduction :  An element is a group of atoms which have same number of protons, in pure form they…

Q: Atoms consist of ________ that are positively charged; neu-trons, which carry a ________ charge; and…

A: Given: Atoms consist of ________ that are positively charged; neutrons, which carry a ________…

Q: Give the three isotopes of hydrogen and their uses

A: Isotopes elements having same atomic number but different mass number

Q: What is the symbol of the most common Atom found in the atmosphere

A: Nitrogen is found in the atomosphere mostly  Which is 78%  And symbol is N2

Q: What Is A blue flame?

A: A blue flame has to be defined below.

Q: Define alpha particle, beta particle, and gamma ray.

A: Nuclear reactions are reactions in which one or more nuclei are produced from the collisions between…

Q: The effective nuclear charge of a nucleus is determined from a shielding factor.  The shielding…

A: Electronic configuration refers to the systematic arrangement of electrons in the various shells and…

Q: circles represent helium atoms; the dark circles represent argon atoms. Select one: a. b. d. It is…

A: Applying concept of partial pressure.

Q: 1)When a positively charged metal touches an electroscope, electrons transfer from ______.…

A: Electrons in the metal of the electroscope are drawn to the charge and pass upward out of the leaves…

Q: Which elements are likely to lose electrons

A: The metal atoms tend to lose electrons and form the cation and the nonmetal tend to electrons and…

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: Discuss how radioactive atoms gain stability.

A: Radioactivity is the phenomenon by which a radioactive substance undergoes a decay process by…

Q: A- Determine the mass of nucleons and electron by atomic mass unit?

A: mass of 1  electron = 5.45e-4 amu, mass of proton = 1 amu and mass of neutron = 1.     Now, nucleons…

Q: Name various radioactive elements.

A: The various names of radioactive elements are named as in step 2.

Q: How is iodine classified?

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: During a chemical reaction, atomic number_________. Select one: a. changes and then is restored b.…

A: A chemical reaction involves in change in number of electrons.

Q: For Barium-138, determine the nuclear radius and volume of the Barium-138 nucleus

A: It is the size of nucleus on assuming that shape of nucleus is spherical .

Q: What is the radium

A: Radium a chemical element with atomic number 88. It is a white radioactive metal used in the…

Q: Predict the boiling point for radioactive radon, Rn, given the boiling points of krypton, Kr,…

A: Boiling point of any element is directly proportional to the Atomic mass of the element. This is…

Q: Please answer this question correctly. 1. Write the configuration of sulfur after it has achieved…

A:

Q: What is the interior layers of a mercury?

A: Mercury is a rocky planet with a huge iron core which makes up a large part of its interior.…

Q: Complete the following by placing the missing words correctly. The atomic theory was given by + .…

A: Atomic theory is given by dalton.proton is a fundamental particle.

Q: What is the name of John dalton’s theory

A: The correct answer is given below

Q: If penguinium (element number 119) is ever discovered, which block will it be placed in?* O P If…

A: Electron configuration can be written by nlx method  n = principal quantum number =  energy level =…

Q: What is the total number of electrons in Selenium-82 and Oxygen-14?

A: Selenium-82 ... isotope selenium , and Oxygen-14 is isotope of Oxygen. We have to find total no of…

Q: Create a timeline that shows the history of the development of periodic table of elements

A: Periodic table is a table of the chemical elements arranged in order of atomic number, in rows and…

Q: Magnesium reacts explosively with oxygen to form magnesium oxide. Which is NOT true of this…

A: The incorrect statement among the given has to be given,

Q: Henri Becquerel discovered that unstable atoms were giving off small particles/rays. What was coming…

A: Nuclear radiation The emission of elementary particles or energy resulting from the decay of atoms.…

Q: What is the order of penetration powers of alpha rays, beta rays and gamma rays?

A:

Q: The process that powers stars is

A: Nuclear fission is defined as a process in which  the nucleus of an atom is splitted into 2 or more…

Q: Noble Gases

A: Noble gases are defined as a group of rare gases which include helium, neon, argon, krypton, xenon,…

Q: State any five properties of radioactive element

A: Isotopes of an element have same atomic number but different mass number.

Q: What is the electron configuration for iodine 131 isotope

A: The arrangement of electrons in an atom with increasing order of energy level is considered as…

Q: Determine the density of helium gas (He) at STP. Atomic weight: He- 4

A: The gases occupy the maximum space as there are negligible interactions among the molecules of a…

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: Radioactive decay is a spontaneous and random process because A. the decay of the nucleus cannot be…

A: Spontaneous means it happens on its own. You don't need any outside influence to get the isotope to…

Q: what is the physical state of element C? what is the physical appearance of element C? what is the…

A:

Q: Based from the nitrogen test experiment, what is the test for nitrogen?

A: Analytical chemistry is branch of chemistry in which we deal with detection of element in organic…

Q: What is the proton number, neutron number and electron number ofNH4+

A: In NH4+ ion,proton number is the total number of protons in the species.Number of protons on N =…

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…

Q: List the general properties of metals, nonmetals, and metalloid elements found in the Periodic Table…

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.