In the accompanying figure, the atomic number refers to the:

Q: A substance formed of crystals of equal numbers of cations and anions held together by ionic bonds…

A: Answer is b.)  salt.

Q: a) Identify the following as element (atomic or molecular), compound or mixture. b) Explain your…

A: An atom of a element is composed of a single nucleus with a unique number of protons surrounded by…

Q: The atomic number of an atom is determined by the number of in the atom. (a) protons (b) neutrons…

A: The fundamental building blocks of matter are known as atoms. They are composed of neutrally-charged…

Q: which of the sub-atomic particles is commonly represented by this symbol:"e-"?

A: An ATOM is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid,…

Q: what is the atomic number for iron, calcium, potassium, oxygen, nitrogen, and hydrogen?

A: The ATOMIC NUMBER  of a chemical element is the number of protons found in the nucleus of every atom…

Q: An ion has 15 protons, 16 neutrons, and 18 electrons. The symbol for the ion is 31P3+. 31P3-.…

A: An atomic number of an element is identified by the number of protons present in its atoms. The…

Q: How many electrons are in the outer shell of each of the following atoms?

A: Since, the question is incomplete, not provided with complete options, so here giving the…

Q: Which electron shell is the valence shell of an atom, and what is  its significance?

A: Electrons can be defined as the negatively charged particles of an atom. All electrons of an atom…

Q: What does the atomic mass of an element represent?

A: Elements Element is the basic fundamental part of matter which is the basic unit of every matter…

Q: Which elements in each pair is more metallic? Silicon or aluminum

A: Introduction: A pure substance that can't be separated by compound methods, comprising of molecules…

Q: What does the atomic number tell us about an atom

A: The atomic number which is denoted by Z of a chemical element uniquely identifies the chemical…

Q: A lithium atom has 3 protons and 4 neutrons. What is itsmass number?

A: The atomic mass number represents the total number of protons and neutrons present in the atom,…

Q: The atomic mass number of an atom is determined by the sum of the number of in the atom. (a) protons…

A: The total number of neutrons and protons in an atomic nucleus is called atomic mass number.

Q: What element does not react with other elements? Group of answer choices A. hydrogen B. helium C.…

A: Noble gases These are group 18 elements of the periodic table. They are usually chemically inert.…

Q: Arrange in order of increasing atomic size. (a) the period 2 elements Li, C, and F (b) the group…

A: According to the question, we have to arrange the following period or group elements in order of…

Q: What are the possible energy states for atomic carbon?

A: Atomic carbon is considered the simplest form of carbon and it is also termed as mono carbon.

Q: Explain the boiling point of a compound ?

A: The melting point is the temperature when a solid substance is starting to convert into liquid. The…

Q: If 10 magnesium atoms and 10 chlorine atoms were allowed to bump into each other, could they combine…

A: Magnesium and Chlorine combine to form salt magnesium chloride, MgCl2, where one magnesium cation…

Q: What is the maximum number of electrons in the 1s orbital of an atom?

A: In this question, we have to answer the maximum number of electron found in 1s orbital.

Q: Select the best answer or answers from the choices given: The mass number of an atom is (a) equal to…

A: The mass number of an atom is:

Q: Describe the characteristics of transition metals.

A: Elements that have d orbit partially filled are known as Transition elements. These metals come…

Q: if 10 magnesium atoms and 10 chlorine atoms were allowed to bump into each other, could they combine…

A: The study of chemical reactions that occurs within living organisms is called biochemistry. This…

Q: Where within an atom are the three types of subatomic particles located?

A: Atom is composed of tiny subatomic particles called protons, neutrons, and electrons.

Q: What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons?

A: An atom is the smallest unit of any matter. This means that all gases, solids, liquids, and plasmas…

Q: Magnesium has an atomic number of 12 and an atomic mass of 24. Which of the following statements is…

A: Magnesium is a chemical element with the symbol Mg and atomic number 12.

Q: Distinguish between each of the following pairs of terms: Neutron and proton Atomic number and mass…

A: Neutron – They are found in the nucleus of an atom.  They do not possess any charge on them they are…

Q: Decide whether the following are chemical or physical mixtures.

A: The matters are everything around the ecosystem. The matters must have some weight and it has to…

Q: _____________ compounds exclude water.

A: Rule of thumb that states that "like dissolves like" which means that polar molecules are dissolved…

Q: If an atom has an atomic number of 6 and an atomic mass of 14, that means it must have _____…

A: The atomic number is the number of electrons present in an atom.  The atomic mass number is defined…

Q: In the periodic table, the elements are arrangedaccording to ________ .a. size c. mass numberb.…

A: A periodic table is a tabular table. It displays all the chemical elements in this table. Over time…

Q: Complete the following table Symbol # protons # electrons # neutrons Atomic Mass Number Number 6°CO…

A: The atomic number is considered as the number of protons exhibit in the nucleus. These protons…

Q: What is the approximate atomic mass of an atom with 16 neutrons, 15 protons and 15 electrons?

A: Atomic mass is described as the number of protons and neutrons in an atom.

Q: Fluorine has an atomic number of 9. Which of the following is true of fluorine? D A. It will lose an…

A: It will gain an electron to become an anion. Cations are positively charged species. Anions are…

Q: Which of the following plays the greatest role in chemical bonding number of protons in the valence…

A: chemical bonding is the interaction between two or more ions or atoms or molecules.  When the two…

Q: what subatomic particle is present in the nucleus of an atom?

A: The subatomic particles are present inside the atom.   Each subatomic particle has a unique charge…

Q: Write the nuclear equation for the beta decay of Bi-214.

A: The bismuth-214 atom has an atomic number of 83 and an atomic mass of 214. Most of the known bismuth…

Q: if 10 magnesium atoms and 10 chlorine atoms were allowed to bump into each other, could they…

A: Magnesium has electronic configuration- 12- 2,8,2 Chlorine has electronic configuration- 17- 2,8,7…

Q: Decide whether the following are elements, molecules, or compounds.

A: Elements  Elements are pure chemical substances. They consist of  only one kind of atom.…

Q: what makes Isotopes of an element different from one another?

A: Isotopes have variation in number of neutrons they posses but number of protons and electrons remain…

Q: Iodine has 37 known isotopes.  Therefore, the atomic mass has a range of 108-144 amu. Which of the…

A: Iodine is a trace element that is naturally present in some foods, added to others, and available as…

Q: Which of the following ideas about electrons was suggested by Niels Bohr? *

A: Niels Bohr Proposed a theory for hydrogen atom in 1913.

Q: If a model of a hydrogen atom had a diameter of 45 cm, what would have to be the diameter of the…

A: Introduction - Hydrogen atom or its model is made up of a centrally placed nucleus or in this case…

Q: The triple point of an element is at 75 torr and 125°C. This means that liquid is more dense than…

A: Various biochemical and physiological processes occurs in the cells resulting in various activities…

Q: Give the name of and symbol for an element with this number of valence electrons. a) 2 b) 6 c) 8

A: Valence electrons are the electrons which are present at the outermost shell. These electrons take…

Q: Write the symbol for an ion that contains 34 protons and 36 electrons.

A: The protons are the positively charged particles that are present inside the nucleus of an atom. The…

Q: In 3-5 sentences, describe all of the components of an atom.

A: An atom is comprised of: - Nucleus: - It consists of positively charged protons and neutral…