All About Bonds
Two or more atoms bonded together
What is a molecule?
The use of the 3 at the start of 3CO₂
What tells you how many molecules there are?
A standalone element particle
What is an atom?
What is an atomic number?
The unit of mass used to express atomic and molecular weights. Neutrons and protons weigh roughly one of this unit of mass
What is an atomic mass unit (AMU)/ dalton?
A bond in which one atom gives up an electron, and another atom gains said electron
What is an ionic bond?
The use of the ₃ after the H in NH₃
What tells you the amount of hydrogen atoms?
The amount of this determines what an element is
What are protons?
What are orbitals?
The building blocks of an atom
What are subatomic particles?
A very strong bond in which electrons are shared between two atoms to fill their outer shells
What is a covalent bond?
The amount of atoms total in 2H₂O
The amount of known elements in the present day
How much is 118?
A group that often bonds with group 1 (Alkali metals)
What are halogens (Group 7)?
The part of an atom responsible for reactivity
What is an electron?
A rule that states that excluding the orbital closest to the nucleus, an orbital will be full when it holds 8 electron
What is the octet rule?
The amount of oxygen atoms in 3C₆H₁₂O₆
How much is 18?
The amount of known elements when the first periodic table was made in the 1700s
How much is 30?
The way elements were grouped on the first periodic table
What is mass?
A theory from 1913 that states electrons move in a fixed orbit around the positively charged nucleus
What is Bohr's theory?
When this isn't full, an atom is unstable and will try bonding with another atom to fill it up
What is the valence shell?
2 Carbon + 6 Hydrogen + 1 Oxygen in written molecular formula form
What is C₂H₆O?
Most elements are this
What are metals?
The creator of the first periodic table in 1700s, who had also won an argument against a French scientist due to his predictions of undiscovered elements being correct
Who is Dmitri Mendeleev?
All atoms have this, but it is not matter
What is energy?