8 C N 3 12 13 14 15 16 Transition elements Mg Al Si P 26 28 29 Fe Ni Cu 47 50 Ag Sn Questions and Problems Q1 From their positions on the periodic table, categorize each of the following elements as a metal (M), a metalloid (ML), or a nonmetal (NM): Na S Cu F Fe As Ca - Q2 Give the symbol of of the following elements: a. noble gas in Period 2 b. halogen in Period 2 c. alkali metal in Period 3 d. halogen in Period 3 f. metalloid in Period 2 e. alkali metal in Period 4 Alkali Alkaline Halogens Noble

Q: 5. Use the periodic table to fill in the blank squares on the following table: Sodiu Manganes Mercur…

A: Electron, proton , neutron are sub atomic particles of atom. Number of protons gives atomic number…

Q: A Chemistry student at Agora is calculating the average atomic mass of Potassium using the following…

A:

Q: A Chemistry student at Agora is calculating the average atomic mass of Potassium using the following…

A: Given, Relative abundance of potassium  Isotope of K Relative abundance K-39 93.12 % K-41…

Q: 5. Lithium exists as 2 stable isotopes in nature and data is given below. 6.015122 amu x 7.016004…

A: If A1 and A2 are mass numbers of two isotopes and X1 and X2 are their percentage  abundance then…

Q: 1. Complete the table below Symbol atom # mass # Protons neutrons Electrons charge 8. 3- 14 104 44…

A: Atomic number: The atomic number (represented by the letter Z) of an element is the number of…

Q: 1. Element X has 3 isotopes with masses of 15.990 amu (abundance 99.0%), 14.00 amu (abundance…

A:

Q: Magnesium (Mg) combusts in air to give a brilliant white light that has been used in photographic…

A: Mass of Mg = 10.0 g Molar mass of Mg = 24.305 g/mol Heat produce when 1 mol reacted = -601.6 KJ/mol…

Q: 1. Predict the mass and abundance of Mg-25 with the information given. Isotope Mg-24 Mg-25 Mass…

A: Mass of Mg-24 = 23.9850 amuAbundance of Mg-24 = 78.99%Mass of Mg-26 = 25.9826 amuAbundance of Mg-26…

Q: Element X has two isotopes. If 72.0% of the element has an atomic mass of 84.9 atomic mass units,…

A: Given : We have to calculate the average atomic mass.

Q: A fictional element is found to have two naturally occurring isotopes. The first isotope has a %…

A: First isotope  % natural abundance is =  68.91% Atomic  mass of first isotope =  22.1760 amu Second…

Q: li 7. Rewrite the isotopes above with the alternate abbreviation, record your answers in the answer…

A: We can use alternative symbol for isotopes as follows: Atom symbol- mass number For eg O-16  and…

Q: 37. Which of the following statements is not correct? A. A cation is formed when an atom loses one…

A:

Q: Select the elements that exist as gases at room temperature. (Hint: Most of these elements can be…

A: Select the elements that exist as gases at room temperature. (Hint: Most of these elements can be…

Q: Complete the table below, using the diagram of an atom shown at right. Properties of subatomic…

A: Thank you.

Q: Chlorine has two naturally occuring isotopes, CI-35 (approximately 75%) and CI-37 (approximately…

A: Mass spectrometry is an important tool for the determination of the molecular mass of the compound…

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.