what are metalloids?

Q: What are the properties of Metals and Nonmetals?

A: Elements are the class of pure substance that is made up of only one kind of particles. They can be…

Q: Which subatomic particle has a negative (-1) charge?

A: There are total 3 sub-atomic particles which are present in any atom.

Q: Classify the following elements as a metal, nonmetal, and a metalloid. 1.) hydrogen…

A: Metal is the element that readily forms cations and shows properties like conductivity, luster,…

Q: How many isotopes of chlorine exist in nature?

A: The element chlorine has two isotopes, chlorine–35 and chlorine–37.

Q: Describe the structure of an atom, including the charge of each subatomic particle.

A: Atom is the basic unit of matter it consists of a heavy positive mass at its center called the…

Q: What is an atom composed of?

A: an atom composed of :

Q: Describe Thomson’s model of the atom. How might it account for the production of cathode rays?

A: To find: The Thomson's model of the atom.  How might it account for the production of cathode rays

Q: What is the atomic number of the transition metal Gold (Au)?

A: Atomic number of gold is  79

Q: Explain the Properties of Protons ?

A: The properties of protons has to be explained.

Q: Out of the atomic number, atomic mass number, atomic weight, isotopes which one of these are unique…

A: Atomic number = It is equal to the number of protons present in the nucleus of an atom.Atomic weight…

Q: define atomic mass and atomic number?

A: Atomic mass is the quantity of matter contained in an atom of an element. It is expressed as a…

Q: What are the noble gases?

A: Noble gases has to be defined.

Q: How are the isotopes of an element different from one another?

A: Isotopes are atoms of the same element which are different in mass. That means They have the same…

Q: What is the relative charge of an electron and proton?

A: ANSWERE IS DISCUSSED BELOW :

Q: Define the term an element?

A:

Q: Write the atomic symbol for the isotope with mass number 84.

A:

Q: What do you mean by deuterium ? how it is symbolized ?

A: Given term,           Deuterium

Q: An atom of gadolinium has an atomic number of 64 anda mass number of 153. How many electrons,…

A: Gadolinium element belongs to the F-block element with the atomic number 64 and atomic mass 153 g.…

Q: What is the charge of an element that contains 38 protons, 36 electrons, and 38 neutrons?

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

Q: Let’s consider, X3+ where the mass number is 41 and electron number is 20. What would be the neutron…

A: Interpretation - To find the neutron number and write the mass number of two possible isobars for…

Q: match it's meaning

A: A . NOBEL GASES--------3 CONTAIN ELEMENTS IN ALL STATE OF MATTER  AT ROOM TEMERATURE C.…

Q: Of the elements Be, C, Cl, Sb, and Cs, which is most likely to be a metalloid?

A:

Q: where is metalloids located in the periodic table

A: The periodic table is the table in which each element is arranged in increasing order of their…

Q: Describe Thomson’s model of the atom. How might itaccount for the production of cathode rays?

A: The atomic model proposed by Thomson was the plum-pudding model. According to Thomson's atomic…

Q: What is the most common ion of Lithium? How many neutrons does it have?

A: Most common ion of lithium = ?  Number of neutrons in this ion = ?

Q: How do you know that an element is a metalloid?

A: A metalloid is an element that has properties that are intermediate between those of metals and…

Q: What defines an element?

A: An atom can be considered as the smallest unit of any matter. An atom is composed of certain…

Q: An isotope of xenon has an atomic number of 54 and contains 77 neutrons. What is the xenon isotope’s…

A:

Q: Explain how Dalton’s atomic theory accounts for the law of conservation of mass?

A:

Q: An isotope has a mass number of 13 and an atomic number of 6. How many neutrons does this isotope…

A: Number of neutrons =  Mass number - Atomic Number

Q: Is hydrogen metal nonmetal metalloid

A: Answer= non-metal.

Q: How are calcium and phosphorus related?

A: In comparison with calcium, plasma phosphorus exists in both organic and inorganic forms, including…

Q: noble gases are also considered to be rare gases. why?

A: Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn) are called rare gases…

Q: How is atomic mass calculated for elements?

A: The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of…

Q: What is the abundance of beryllium-10 ?

A: Isotopes are atoms of same elements which have same atomic number but different mass number. In…

Q: Elements in Group 7A are known as the A) alkaline earth metals B) alkali metals C) chalcogens E)…

A: Periodic table represents the systematic arrangement of elements in which the properties of these…

Q: D. Guide Questions 1. What are metalloids? Enumerate the elements considered to be metalloids. 2.…

A: What are metalloids

Q: The synthetic radioactive element gallium is used in many medical studies. Give the number of…

A: Gallium-67 has 31 electrons, 31 protons and 36 neutrons.

Q: Discuss in chronological order the different atomic model.

A: Atomic models

Q: Since different isotopes of the same element have the same chemical behavior, how can they be…

A:

Q: what element has 27 electrons and 29 neutrons ?

A: Element consist of Atoms. Atoms may consist of subatomic particle that is electron, proton and…

Q: what element might you expect to be most similar to Sc in its chemical behavior? Why?

A: The element given is Sc i.e Scandium.

Group 14 Elements

The following elements come under group 14 of the periodic table.