Identify the group number corresponding to each of the following families of elements. alkali metals alkaline earth metals halogens noble gases

Q: periodic

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

Q: What THREE elements are rare-earth elements? calcium neodymium rhenium niobium samarium thallium…

A: In the above question the elements which are rare earth metal  among the option provided are…

Q: An atom has nine protons, ten neutrons, and nine electrons. Write the symbol of the atom.

A: An atom is made of neutrons, protons and electrons. Protons and neutrons together make the nucleus.…

Q: A neutral atom of aluminum has 14 neutrons and 13 protons. How many electrons does this aluminum…

A: Number of  protons (p) = 13 Number of neutrons (n) = 14 Number of electrons (e) = ?

Q: In which group on the periodic table is Cobalt? O Halogen O Alkaline earth metal Noble gas O Alkali…

A: Solution Cobalt, like iron, may be attractable and then is employed to form magnets. it's alloyed…

Q: For each of the following chemical symbols, determine the number or element symbol that goes in the…

A: The atomic number of an atom is equal to the number of protons present in the atom. For a neutral…

Q: Classify the family of each of the following elements as alkali metals, alkaline earth metals,…

A: Element Family Period   Hydrogen Alkali metal 1   Barium Alkaline earth metal 6   Potassium…

Q: Write a isotope symbol for An ion with 17 protons, 18 electrons, 20 neutrons

A: Isotopes of an atom have same number of protons but differ in the number of neutrons, so isotopes…

Q: Assignment 1) Memorize names and symbols of the elements in • the first three rows of the periodic…

A: As per our guidelines we can only solve first three questions. Please resubmit the other questions…

Q: elements as a metal, non metal or metalloid

A:

Q: Current modern atomic theory is based on which of the following? Quantum Model Rutherford…

A: Now a day we are using modern atomic theory. This theory consists of current model of the atom…

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

A:

Q: 13. (Entropy) For each of the following processes, tell whether the entropy of the universe…

A: Entropy of a system can be defined as the degree of disorder of a system. More the degree of…

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: What are the two different notations for an element with 6 protons, 6 electrons, and 8 neutrons?

A:

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: Identify these elements based on their locations in the periodic table. Give the symbol, not thể…

A: Elements based on their periodic locations: 1.) Period 3, Group 2 (2A) : The third period contains…

Q: I have an atom with 4 protons, 3 neutrons and 4 electrons, what is it's charge neutral negative…

A: proton = electron

Q: A monatomic ion has a charge of +2. The nucleus of the ion has a mass number of 62. The number of…

A:

Q: Identify the correct atomic notation for the element that has 37 protons and 43 neutrons O Br 43

A: The "AZ" notation is a shorthand for the chemical symbol and atomic number and mass number of an…

Q: Complete the following table. Isotopic Atomic Number Mass Number # protons # neutrons # electrons…

A: To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number:…

Q: Match each property to the appropriate subatomic particle. Drag each property into the correct bin.…

A: • symbol e = electron  • +1 charge = proton

Q: Fill in the following table about atomic number, mass number, protons, neutrons, and electrons for…

A: Atomic number is equal to the number of electrons and protons. Mass number is equal to the sum of…

Q: 20 Label these groups of the periodic table. Answer Bank alkaline earth metals alkali metals noble…

A: Given, groups are alkali metal  alkaline earth metal  halogen  noble gas  The answer for the blanks…

Q: In which group on the periodic table is Iron? O Alkali metal O Halogen Alkaline earth metal O…

A: A multiple choice question based on the position of Iron in periodic table.

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…

Q: mistakes please correct them.  Protons Neutrons Electrons Element Symbol Element Name Net…

A: In an neutral atom, Number of electrons = number of protons = atomic number. Number of neutron =…

Q: 12, Which of the statements is not correct about the element germanium? Group of answer choices A,…

A: Germanium is an element with an atomic number 32. The germanium atom has 32 protons and 32…

Q: Beryllium has an atomic number of 4. How many neutrons does the isotope beryllium-9 have? O 4 O 13 9…

A: * Atomic number = Number of protons  For the neutral atom , Number of electrons = number of protons…

Q: Which of these types of elements will form anions?     the transitional metals     halogens…

A:

Q: Determine the number of protons, neutrons and electrons in the following: 40 18X O = 18 n° = 18 e =…

A: Atom consists of nucleus and electrons revolving around nucleus, nucleus contains proton and…

Q: and not the identity of the element) 17 X 2+ Protons 7 Neutrons 10 electrons name (identity) of…

A: In atoms, electrons are revolving around the nucleus. Nucleus is made up of protons and neutrons.

Q: Most of the elements in the periodic table are O metals O non-metals O metalloids gases

A: Metalloids - Elements which have properties intermediate of metals and non-metals.  Metals - They…

Q: Periodic table The periodic table lists two main numbers for each element. The atomic number is an…

A: We have to calculate no. of neutrons in part A and average atomic mass in part B

Q: How many electrons, protons, and neutrons are there in the ion of the hypothetical 445A-3+ element…

A: