If calcium lost two electrons it would have the same number of electrons as O Barrium O Argon O Berylium O Titanium

Q: A neutral atom of the most common form of nickel (Ni) has how many electrons?

A: As we know that, nickel is a transition metal and a d block element.Group: 10Period: 4Atomic number…

Q: . The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8…

A: Given: Density of water = 0.967 g/mL. Volume of water = 499.8 mL.

Q: Mrs. Smith showed her class three elements and described their properties. Properties of Elements…

A: The data given is,

Q: periodic

A: According to the question, we need to determine what does the letter 'A' represents in this periodic…

Q: they must be transported from the place where the metal dissolves to the place where the oxygen is…

A: Electrochemistry deals with the chemical changes and electrical changes. The electro chemical…

Q: Organization of the Periodic Table Read each description in the first column of the table below. If…

A:

Q: What is the chemical formula for the compound formed between sodium and bromine? formula: NaBr What…

A: The use of chemical element symbols, numbers, and other notations to represent the chemical…

Q: Magnesium is located in on the periodic table. O d-block O s-block O p-block

A: For an element, If the differentiating electron (last electron) enters into s-orbital, then the…

Q: Find the number of electron and neutrons in the following: 56Fe+3 Electrons Neutrons

A:

Q: For questions 42 thru 60, consult the attached Periodic Table of the Elements.  Please do NOT Google…

A: Valence shell The outer most shell of an atom is called valence shell. The electron shells are…

Q: The newly discovered element Nh (Nihonium), with atomic number 113, would be a member of which…

A: Atomic number of this newly discovered element Nihonium (Nh) is 113. In the periodic table, period…

Q: Read each description in the first column of the table below. If any chemical element with atomic…

A: A question based on periodic trends. Few elements are is given that are to be verified whether they…

Q: Which of the following elements are the largest?  1. Ca 2.K 3.Mg 4.Na

A: -> On going left to right in periodic table size decrease. -> On going top to bottom in…

Q: Which statement is true about elements? An element is made of only one kind of atom Water is a…

A: An element is defined as substance which contains same type of atoms, and no other atoms. Has a…

Q: Identify the element that has an atomic number of 40. neon calcium zirconium bromine

A: Number of protons = Atomic number

Q: Fill in each sentence to complete the third row in the table. Match the words or numbers in the left…

A: There are 7 rows in the periodic table which is known as periods.  There are 18 columns in the…

Q: Find the number of electron and neutrons in the following: 197AU+3 Electrons Neutrons

A: Au (gold)atomic number 79 No of neutrons =Atomic mass -atomic number(Z) During the loss of electrons…

Q: What are the chemical symbols and atomic number of Barium Ba and Magnesium Mg

A: According to the periodic table Barium belongs to group 2 ,while magnesium also belongs to group 2 .

Q: Which elements are in the same group helium and hydrogen carbon and oxygen sodium and magnesium…

A: Group: The vertical column of the modern periodic table is known as "Group".

Q: Enter the number of electrons: i 4

A: Number of pi electrons present in given structure i.e. thiophene

Q: Classify each element as a metal, a semimetal, or a nonmetal. In Metal Ge Semimetal (metalloid) Xe…

A: s and p block elements in periodic table classified into metals, nonmetals and metalloid.Metals are…

Q: What elements are in the same GROUP! O O, F Na, Mg O N, P O Al, Si

A: The elements in the periodic table of elements are arranged in Groups and Periods according to their…

Q: One atom has 15 protons and 16 neutrons in its nucleus, with 15 electrons traveling around it.…

A: Isotopes are the elements which have same atomic numbers but they have different mass number  Ex.…

Q: Direction: Read then solve the question carefully. Click the letter of the correct answer. Question:…

A:

Q: Lithium chloride (LICI) is a salt used in the production of lithium metal and is also used as an…

A: Ionic bond is formed by transfer of electrons. But covalent bond is formed by sharing of electrons.…

Q: Which element is the heaviest naturally occurring noble gas?  Which element is in the 4th period and…

A: Step 1:    (A)  Radon (Rn) is the heaviest naturally occuring nobel gas, Radon does exist in nature…

Q: 30 - The formula of the compound of a salt is XCl2. Since the X ion in this compound has 28…

A: Formula of the compound of a salt is given XCl2. If it converted into ions than it form cation and…

Q: In dating geological samples, scientist compare the ration rubidium-87 to strontium-87. Give the…

A: The atomic number is the number of protons in the nucleus of an atom. In an electrically neutral…

Q: Which two elements on the periodic table are in the same period? O Sn and Rb O K and Ba O F and Cl O…

A: The periodic table is divided into 18 groups and  7 periods.(i)  The 18 vertical columns that goes…

Q: Use a periodic table to complete the following. Atomic Name Symbol Number aluminum 16 Cr silicon Mn…

A: 1) Aluminium : The atomic number of aluminium = 13  The symbol of aluminium is Al.

Q: This group of elements is the most reactive of all the non-metals  A) rare earths B) halogens C)…

A:

Q: Which of the following charges is not possible for a carbon atom or ion, which has 6 protons, a…

A:

Q: Select the two isotopes of nitrogen-15. NN-16 N714N714 F2−F2− phosphorus-15 OO-15 O+O+ O815O815…

A: Isotope - atomic number will be same  Answer will be - N815 O+

Q: More than one may apply An atom that differs in charge from another atom of the same element: has…

A: We know that, Atom when gain or loss electron then form ions. Thus,

Q: 7. Combustion reactions are a notable source of carbon dioxide in the environment. Using the…

A:

Q: Select all the true statements. Anions carry a positive charge. When an atom gains an electron, it…

A: Given here few statement and we are asked to choose the true statements from the among given.

Q: A new isotope is discovered that has a mass of 25 amu and 15 neutrons. What is the elemental…

A: Given that, Mass = 25 amu No. of neutron=15 Element ?

Q: What are the protons and electrons related in an atom that is neutral

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

Q: If you know ONLY the following information, can you ALWAYS determine what the element is? Number of…

A: Atoms are made up of protons, neutrons and electrons.

Q: From the image below, the part of the periodic table that is circled by the orange marker is called…

A: On the left side: They are called the s-block elements. In s -block there are two groups: Group-1…

Q: 5. Use the internet to figure out which of the following METAL ELEMENTS is most likely the mystery…

A: D block elements are called as transition metals like zinc means they have characteristics between s…

Q: Find the number of electron and neutrons in the following: 52Cr+2 Electrons Neutrons

A: Given;

Q: ue False Elements of the same group have simīlar physical and chemical properties. There are more…

A: 1.  True. - elements of same groups have similar physical and chemical properties. 2.  False. -…

Q: What element has 3 neutron 4 electrons and 4 protons

A:

Q: Help

A: Most abundant element means most fraction of availability of the elements in stars.

Q: Which is the most massive (has highest mass)? An atom of oxygen A proton A molecule of hydrogen A…

A: A proton is a subatomic particle that is present in the nucleus of an atom. The number of protons…