What atomic number is Gold
A. 79
B. 22
C. 78
A. 79
What is a Neutron
A neutral subatomic particle that, in conjunction with protons, makes up the nucleus of every atom except ordinary hydrogen.
Atomic Number of Hydrogen.
1.
When was the periodic table made?
1869.
What is the center of a atom called.
a nucleus.
Who made the periodic table?
Dmitri Mendeleev
What Is A Atom?
The basic unit of a chemical element
Atomic Number of Sodium
11.
Whats a Ionic Bond
Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds.
What holds the nucleus together?
the strong force.
What is the periodic table of elements
The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic number.
A small, positively charged particle of matter found in the atoms of all elements.
Atomic Number of Boron
5.
Whats a Covalent Bond?
A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
What does the nucleus do?
the nucleus serves both as the repository of genetic information and as the cell's control center.
What element has a atomic mass of 238
Uranium
What Is A Electron?
Atomic Number of Antimony.
51.
Whats a Ion
An ion is an atom or molecule with a net electrical charge.
What makes a nucleus unstable?
What is atomic mass?
the mass of an atom of a chemical element expressed in atomic mass units.
What Is A Molecule?
The smallest particle of a substance that has all of the physical and chemical properties of that substance.
Atomic Number of Calcium.
20.
Whats a Electron Cloud.
An electron cloud represents the area around an atom's nucleus where electrons are most likely to be found.
Where does the nucleus come from.
The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral.