which tube is hydrogen what was the final ratio and oxygen? of hydrogen to oxygen?

Q: How many electrons are in the outermost shell of a sulfur atom?

A:

Q: A hydrogen filled baloon is ignited, and 1.50g of hydrogen reacts with 12.0g oxygen. How many grams…

A:

Q: Which arrangement of elements did Mendeleev find produced a repeating pattern of properties?

A: According to Mendeleev Periodic law, the periodic properties of the elements are repeated after…

Q: why the discovery of noble gases was late?

A: The discovery of noble gases was late.

Q: What is the formula of calcium phosphide?

A: We know that, Atomic number of Ca = 20 Electronic configuration = 1s2,2s2,2p6,3s2,3p6, 4s2 It means…

Q: please answer with proper explanation. Question: what is an atom?

A: Atom is smallest indivisible unit of an element. It comprises of central compact mass called as…

Q: The number of protons (is, is not) always equal to thenumber of electrons in orbit around the…

A: The symbol of an element is defined as  ZXA Where  A = mass number = Z + N              Z  = Atomic…

Q: Discuss Neutron-to-Proton Ratio?

A: In an atom, the atomic number indicates the number of protons present in an atom of an element. The…

Q: Some isotopes of iodine are radioactive, but others are not. When we speak of two isotopes of an…

A: Isotopes are different forms of a chemical element which have the same atomic number (number of…

Q: What is an atom composed of?

A: an atom composed of :

Q: what is the total number of neutrons in hydrogen atom?

A: The atomic number of hydrogen is 1, so there is a one number of proton and the number of neutron is…

Q: List some examples of how elements were named

A: Elements are the the pure substances which consists of only same kind of atoms which are same in all…

Q: What is the symbol for neon?

A: Neon is a Nobel gas element. It's atomic number is 10. It is a colourless and orderless monoatomic…

Q: What variable did Mendeleev use to organize his version of the periodic table?

A: During the construction of his periodic table Mendeleev consider the following physical and chemical…

Q: Which of the following defines the mass of an atom

A:

Q: Summarize indicating Thomson major contribution to the atomic theory.

A: The atom is the smallest unit of particle that used in a chemical reaction.

Q: 23, and so on Which of the following was one of Empedocles elements (from ancient Greece)? Water O…

A: According to the greek philosopher , Empedocles , all matters was generally composed from four…

Q: The percent by mass of copper(I) in Cu,CO3 is %.

A:

Q: 11. The name and atomic number of your favorite metalloid is

A: Metalloids are the pure elements that has characterstic properties of both metals and non metals.…

Q: What is the periodic table

A: The elements are the simplest chemical species, which has same number of protons in the atomic…

Q: Part A What is an ion? An ion is a charged particle. O An ion is a neutral particle.

A:

Q: Part A What is the atomic number of the element located in group 16, period 2 of the periodic table?…

A:

Q: which Atom is the smallest A) carbon B) silicon C) phosphorus D)Nitrogen

A:

Q: The atomic number, which defines the element is always equal to the total number of

A: Every element is made up of atoms . Atoms consists of electrons , protons and neutrons. These are…

Q: An example of an element is chicken noodle soup powerade air inside a balloon lead pipe baking soda…

A: An element is a pure form of substance in which all atoms have same number of proton so here we see…

Q: Name the three particles of the atom and their respective charges

A: Detail description is given below

Q: is there a way to find out what all the isotopes for an element is by looking at the periodic table?

A: Nuclear chemistry and atomic structure, which are fundamental aspects of chemistry that explore the…

Q: oxygen atoms

A:

Q: Most of the mass of an atom is located in the: Most of the volume of an atomic is occupied by the:

A: Atom mainly consists of the number of three subatomic particles that are proton, electron, and…

Q: Determine the number of protons, electrons and neutrons for a neutral atom of silicone given a mass…

A:

Q: which of the following is a postulate of the atomic theory

A: The atomic theory is a scientific theory of the nature of matter, which states that matter is…

Q: An electrical charged atom or group of atoms. What is it

A: All the substances in thE universe are made up of tiny particles known as atoms. Atoms can be…

Q: QUESTION 9 Consider the following generic picture of an atom. 2 Which of the following is correct…

A: The objective of the question is to choose the correct description of the regions labeled 1 and 2.

Q: What is the Law of Multiple of Proportions?

A: Law of Multiple Proportions ----- When two elements react to form two or more compounds, than the…

Q: What is the atomic number and average atomic mass of tin

A: Atomic number of tin or Sn, as it is represented in chemistry, is 50.

Q: element belonging to 18th group are also called noble gases. why?

A: The 18th group elements of periodic table are termed as noble gases.

Q: 10. In what year did Albert Einstein prove the existence of atoms Ernest Rutherford do his Gold Foil…

A: it was Albert Einstein who, starting in his epochal year of 1905, published several papers that…

Q: What is the electrical charge of water?

A: The compound given is water.

Group 13 Elements

In the periodic table, group 13 elements exist in the first p-block. There are six elements present in group 13, which include boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and element 113 (ununtrium, (Uut)). Group 13 elements are also designated as the boron family.