Atoms
What is the subatomic particle that has a positive charge?
Proton
What pH is considered neutral
The first electron shell can hold how many electrons?
2
An atom becomes an ion by gaining/losing ___?
electrons
Isotopes are atoms of the same element with different numbers of ___?
neutrons
The atomic number tells us how many ___?
Protons/protons and electrons (electrons alone not accepted)
How do we class substances with a pH less than 7?
Acids
What is the electron configuration of oxygen?
2, 6
what are the names of a positively charged and negatively charged ion?
positive: cation
negative: anion
Which isotope shows a 'regular' carbon atom?
Carbon-12, Carbon-13 or Carbon-14?
Carbon-12
An atom contains 17 protons, 17 electrons, and 18 neutrons. What is its mass number?
35
The name of the paper that changes colour depending on whether its in a acidic or basic solution
blue/red litmus paper
What is the formula used to determine the maximum capacity of electrons an electron shell?
2N2 (where N = the shell number)
Na +1
Carbon-12, Carbon-13, and Carbon-14
6
What are rows and columns called on the periodic table?
Rows = periods
Columns = groups
What is the reaction called and what are the products produced when an acid reacts with a base?
Name: Neutralisation reaction
Products: Salt + water
What does Bohrs model state?
Filling capacity is 2, 8, 8
What does aluminium + nitrogen form? (name)
Aluminium Nitride
An atom contains 17 protons and 20 neutrons. Identify the isotope
Chlorine-37
The group number can tell us how many ___ an electron has
valence electrons
An acid is a substance that donates hydrogen ions (H+) in a solution, a base is a substance that produces hydroxide ions (OH-) when placed in a solution (will accept base as a H+ acceptor)
What is the electron configuration of calcium?
2, 8, 8, 2
AlN
An unknown atom has 20 protons, 20 electrons, and 22 neutrons. Name the element and determine its isotope.
Calcium-42