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Basic Chemistry

by Scott
Across
This element is considered the most electronegative (3.98)
This is also called a molecular bond.
A group of atoms bonded together is called this.
A covalent bond between two atoms is considered this if the electronegativity difference between the atoms is 0.4 or greater.
When an ion is formed, the number of protons increases by one. True/False
Protons, neutrons and Electrons make up the ______________
Ionic compounds dissolve, individual ions are dissociated in solution. The solution is called this.
What 2 elements written together describe common table salt?
Opposite of a cation is this.
These are ions that have a net positive charge.
This is a molecule made of atoms from different elements. Not molecule.
Ionic compounds containing hydrogen ions (H+) are classified as these types of substances.
When an atom gives up an electron, it develops this type of charge.
Opposite charges tend to attract. True/False
O2 as a molecule is considered this type of covalent bond.
Also referred to as an electrovalent bond.
Down
Each of two or more forms of the same element that has equal numbers of protons but different numbers of neutrons are called this.
An atom that receives an exytra electron has this type of charge.
If a chemical structure has the same number of protons and electrons, it is considered this.
If the pH of a substance is above 7, it is called a base or this?
Sodium alone is considered very___________. (It is quick to find a partner)
NH3 is this element.
Carbon is located in this period in the table of elements.
Outermost electrons are also called these types of electrons.
This element has an atomic number of 11.
These atomic components have a negative charge
A___________ dot structure is the symbol with an appropriate number of dots representing the correct number of valence electrons.
The opposite of an acid is a _______.
Hydrogen and helium are located in the same ________.
This scale is commonly used to measure electronegativity.