numbers (1,2,3...etc) NOT as words (one, two, three, etc.) Hydrogen (H)  Carbon (C)  Helium (He)  Argon (Ar)  Chlorine (Cl)  Iodine (I)  Nitrogen (N)  Phosphorous  Arsenic (As)  Oxygen (O)  Sulfur (S)  Selenium

Q: Consider a hypothetical case in which the change on a proton twice that of electron. Using this…

A: Given: A hypothetical case is considered in which the charge on proton is twice that of electron.

Q: Which of the following ions has the largest size? Select an answer and submit. For keyboard…

A: Given ions of elements Cs,K,Li,Na and Rb are members of group 1 of the periodic table. Also known as…

Q: Answer each question in 5 to 10 sentences only.  1. Why are the groups in the periodic table…

A: In Periodic table , all the elements are classified as A block and B block elements. A block…

Q: Circle all that would be soluble in water:

A: the solubility of any compound is mainly depends upon the difference in electro negativity  between…

Q: There is a small portion of the periodic table that you must know to do organic chemistry. Construct…

A: Concept introduction: Periodic table is a systematic arrangement of all the elements present in…

Q: ou as teacher would like to revise the periodic table in a creative way with your learners in Grade…

A: The periodic  table is also known as the periodic table of elements and it is the tabular display of…

Q: Sulfur Chlorine What is the name of this atom? Argon Potassium

A:

Q: 1. To what group in the periodic table do the elements listed belong ? 2. Why these elements are…

A: The elements listed are called inert gases and belong to the group 18 of the periodic table. They do…

Q: Rank the effective nuclear charge Z* experienced by a valence electron in each of these atoms: z*…

A:

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: 3. How many valence electrons are there in: Si and P?

A: Valance electrons in Si and P

Q: A neutral atom of Gallium has how many total electrons that can be described as having an ml= +1

A: There are for quantum numbers: Principal quantum number Angular quantum number Magnetic quantum…

Q: Nitrogen molecules (N2) are moving all around you right now at room temperature (~300 K). Take the…

A:

Q: What is the MAXIMUM number of electrons that can be contained in the 5th shell of an atom? (not…

A: The long form of the periodic table is a tabular arrangement of all known elements. Here the…

Q: 6. What are the no of protons and electrons on the following ions: (a) Ca , (b) F , (c) 0? , and (d)…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: 1.)Fill in the blanks. Even though they are in the same family, the calcium atom is much larger…

A: They are in the same family, the calcium atom is much larger than beryllium atom because it has more…

Q: If you were to add an electron to the atom in the image below, what would they be added to?

A: Given Electronic Configuration 1s2 2s2 2p6 3s2 3p4  Electronic Configuration after adding one…

Q: photo of your answer (in jpg) and send back via the submission folder in Soul. Section B: Short…

A:

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: To solve this problem we have to know about the periodic trends of atomic radius of elements in…

Q: Part A Once you have filled in all the gaps on a separate sheet of paper, enter the four missing…

A:

Q: 55. Evaluate Identify any incorrect names or formulas from the following choices. Explain your…

A: The naming of ionic compounds is done in a way that cation name is written first followed by the…

Q: I want to make sure I got this right since I'm struggling a little bit. I have to figure out how…

A: In the center of the atom, there is a small, dense, positively charged region called as nucleus.…

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: last 2 questions , you have already done correct. anion is larger then its neutral atom and cation…

Q: In Figure 2.7, if two or more elements are in the same row, what do they have in common? If two or…

A: In the periodic table, elements are arranged according to the similarities in their electronic…

Q: Which of the following families from the periodic table are also groups? Select all that apply.…

A:

Q: 1- Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Dear student as per guidelines allowed to answer one question  so I answering first question  MnO4-=…

Q: Solve this

A: An atom is made up of three subatomic particles which are electrons, protons and neutrons. The…

Q: You land on a distant planet in another universe and find that the n=1 level can hold a maximum of 4…

A: The question is based on the concept of atomic structure and molecular formula determination. we…

Q: 10 Which of the following sets, are all compounds? a) Water, Salt, Ammonium nitrate b) Carbon…

A: All the matters are composed of atoms. The matter that formed by only one type of atom is known as…

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: atomic size is always greater then  its ionic size .

Q: Let's consider an isotope of an element X with the following atomic symbol: 42 X 20 Answer the…

A: For a neutral atom, the number of protons must be equal to the number of electrons.

Q: What is the radius of a barium atom ? Give your answer in nm

A: Atomic radius is defined as the distance between the center of the nucleus to the outermost shell…

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. Bohr’s theory works well with hydrogen atom. However, the theory failed when atoms with two or…

A: The filling of electrons in the atomic orbitals is defined as an electronic configuration. Electrons…

Q: Write the abbreviated electron configura 6. silver 7. lead 8. tin(I) ion

A: Filling  of electrons in atomic orbitals follow certain rules.   one of them is aufbau principle.…

Q: True or False 1. -The electron configuration of an atom could give the total number of electrons in…

A: The electronic configuration is the arrangement of electrons in different energy levels in an atom…

Q: Look at the relative positions of each pair of atoms listed here in the periodic table. How many…

A: The position of an element in a periodic table can be used to identify the number of electrons…

Q: The maximum number of vale

A: Valence electron is an outer shell electron that is concerned with an atom and that can participate…

Q: While the most common isotope of nitrogen has a mass number of 14 (nitrogen-14), a radioactive…

A: a) Since the isotopes are defined as the elements with same atomic number but different mass number.…

Q: Complete the following statement: Non metals have ____, ____ or ____ electrons in their outer shell…

A: There are a total of 118 elements approximately in the periodic table arranged in the form of groups…

Q: Why does ionization energy in crease across a period? a greater number of electrons? b. Greater…

A: The energy that is basically needed to displace an electron (e-) from an atom which is isolates and…

Q: Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in…

A: We know that, i) As we move from left to right in a period, The atomic/ ionic size decreases due to…

Q: Let's try this! Here are some tasks for you to accomplish for the completion of this lesson. You got…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Be sure you can predict ion formation from the previous module. (In other words--what is the charge…

A: Elements lose or gain electrons as per their requirement to achieve noble gas configuration.

Q: The atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is…

A: Given, 9F1-

Q: - Rank the size of the following atoms and ions – C, C*, F, Br", Rb*

A:

Q: Which of the following elements is the most metallic (even if it isn't a metal)? Group of answer…

A: they Belong to the non metal category and Helium even belong to the Noble Gas category but if  I…

Q: Determine the number of valence electrons for the following elements potassium 4 ☐ calcium arsenic ☐…

A: Valence electrons:  Electrons which are present in the outermost shell (valence shell) of an atom…

Q: How many valence electrons are in element number 11 on the periodic table? (Remember element 11…

A: The number of protons decides the atomic numbers of the element.

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.