Write the chemical symbols for three different atoms or atomic anions with electrons.

Asked by maham237 @ 24/12/2020 in Chemistry viewed by 329 People

Answered by maham237 @ 24/12/2020

1) Atomic number of argon (Ar) is 18, it means that it has 18 protons and 18 electrons.

Electron configuration of argon atom: ₁₈Ar 1s² 2s² 2p⁶ 3s² 3p⁶.

2) Atomic number of chlorine (Cl) is 17, it means that it has 17 electrons and 17 protons, but if it receive one electron, it becomes anion Cl⁻ with 18 electrons.

Electron configuration of chlorine anion: ₁₇Cl⁻ 1s² 2s² 2p⁶ 3s² 3p⁶.

3) Atomic number of sulfur (S) is 16, it means that it has 16 electrons and 16 protons, but if it receive two electrons, it becomes anion S²⁻ with 18 electrons.

Electron configuration of sulfur anion: ₁₆S²⁻ 1s² 2s² 2p⁶ 3s² 3p⁶.

Which of an atom's electrons are involved in chemical reactions

Asked by maham237 @ 17/02/2021 in Chemistry viewed by 288 persons

Which of an atom's electrons are involved in chemical reactions? O A. The electrons farthest from the nucleus of the atom O B. The electrons that make one isotope different …

Write any three differences between aerobic and anaerobic respiration

Asked by admin @ 12/08/2021 in Biology viewed by 337 persons

Write any three differences between aerobic and anaerobic respiration

What is the difference between chemical symbol and chemical formula

Asked by admin @ 04/08/2021 in Chemistry viewed by 313 persons

3 differences between chemical symbol and chemical formula

Write down the electron distribution of chlorine atom

Asked by admin @ 31/08/2021 in Science viewed by 274 persons

Write down the electrons distribution of chlorine atoms how many electrons are there in l shell

What are the three steps in writing a chemical equation

Asked by admin @ 03/08/2021 in Science viewed by 291 persons

Explain the main three steps for writing chemical equation

Give the difference between three sub atomic particles

Asked by admin @ 31/08/2021 in Chemistry viewed by 368 persons

Give difference between three sub atomic particles

Write any three postulates of dalton's atomic theory

Asked by admin @ 26/08/2021 in Science viewed by 375 persons

Write any three postulates of Dalton's atomic theory

Write the atomic symbol for the isotope of bismuth with 125 neutrons.

Asked by maham237 @ 10/01/2021 in Chemistry viewed by 257 persons

An ionic bond is a bond between _____. a cation and an anion the ions of two different nonmetals valence electrons and cations the ions of two different metals

Asked by maham237 @ 14/01/2021 in Chemistry viewed by 355 persons

Write the greatest 4 digit number using three different digits

Asked by admin @ 04/08/2021 in Math viewed by 332 persons

Greatest 4 -digit number using 3 different digits=

What information is needed to determine the energy of an electron in a many-electron atom?

Asked by maham237 @ 25/12/2020 in Chemistry viewed by 955 persons

What information is needed to determine the energy of an electron in a many-electron atom? Check all that apply. What information is needed to determine the orientation of orbital? What …

Chemical reactions occur when atoms are separated joined or rearranged

Asked by admin @ 29/11/2021 in Chemistry viewed by 313 persons

According to Dalton's atomic theory, elements are composed of tiny particles called ___ .Atoms of each element are ___ from the Atoms of all other elements. Atoms of different elements …

What is the difference between an atom and a molecule

Asked by admin @ 27/11/2021 in Medicine viewed by 349 persons

What is the difference between an atom, molecule, and macromolecule? Give an example of each.

How many protons and electrons does a neutral atom have

Asked by admin @ 26/11/2021 in Chemistry viewed by 388 persons

A neutral atom has 37 electrons. How many protons does the atom have?

Isotopes are atoms of the same element that have different

Asked by admin @ 26/11/2021 in Chemistry viewed by 291 persons

Which statement is true? Isotopes are atoms of different elements which have the same mass. Isotopes of a given element have equal numbers of neutrons. Isotopes of a given element …