Discipline Of Cell Biology : Physics And Biology

13. What are the subatomic particles and what is the electrical charge of each? Protons (positively charged), Neutrons (electrically neutral), both found in the Nucleus of the atom & Electrons (negatively charged). Where in the atom is each of these particles found? In the orbital (Electrons)

Empirical formulas represent the ratio of atoms in a formula. It is expressed in the simplest, small, whole number ratio. The molecular formula can either be the empirical formula, or a multiple of the empirical

Cell Theory is an explanation that says everything is made of cells. It continues on to say that those cells came from preexisting cells. Cell Theory is a theory because it is a frame-worked explanation of an observation made by many biologists like Anar Van Leeuwenhoek. Van Leeuwenoek studied plant stems, pond water, and gathered a conclusion that generally, all of those things are made of cells. Other biologists like Louis Pasteur added onto this idea that all organisms are composed of cells. A theory is also composed of two components; a sequence of patterns in the world and the thing or catalyst that is responsible for the pattern. The sequence of the pattern in Cell theory is that every organism in the world are made up of cells.

The identity of each element is defined by the number of protons in its nucleus

We can use the small numbers to give information about the particles in the nucleus.

Protons, neutrons and electrons are different from one another; they have their properties and/or characteristics.

3. Electrons are small and are negatively charged (-) with a mass of almost 0 amu..

-Henry Gwyn Jeffreys Moseley- Worked with Ernest Rutherford, experimented with 38 metals, he found that the positive charge of each element’s nucleus increased by one from element to element as they were arranged in Mendeleev’s periodic table, lead to modern definition of atomic number (# of protons in atom’s nucleus) and the recognition the

which make up all of life. They are based on the ancient alchemical systems and

6.022 x 1023 atoms or molecules. The molar mass (g/mol) refers to the total mass (g) of an element present in a single mole of an element. Through knowing the mass and molar mass of a compound, one can then determine the number of a moles in a specific compound. Each substance possesses a unique molar mass because the atoms of various elements contain different numbers of protons, neutrons, and electrons, therefore they each have different masses. Moreover, one can use physical properties, such as molar mass, to identify something that is unknown.

Every element is special because none are ever the same. Even an atoms isotope is different. Krypton’s atomic number is 36. Its atomic mass is 83.798 units. The number of protons in an element, which is also the atomic number, is 36. It also

Which are most effective at shielding, despite all electrons in an atom shielding one another to some extent.

The atomic mass of sodium is 23. The number of moles in 46g of sodium is ________.

The cell is the smallest unit able to sustain life, and they are often referred to as the building blocks of life. There are two primary types of cell, which are categorized according to the way their genetic material is packaged, rather than size or shape. These are:

The nucleus is in the center of an atom and is made of neutrons and protons, the nucleus also acts like the control center of an atom. Isotopes have a different number of neutrons than protons. Every atom is a different element, they have properties that only one atom has and also have similar properties. These properties of elements