Subatomic Particles
Name the charges of the 3 subatomic particles: protons, neutrons, and electrons
Protons: positive
Neutrons: neutral/no charge
Electrons: negative
What is the atomic number of fluorine?
9
What charge does Boron form as an ion?
+3
valence electrons
What is the definition of an ion?
A charged atom
Nucleus
What is the mass number of a Sulfur atom with 17 neutrons?
33
Which group contains elements that normally form a -2 charge?
Group 16
In a Bohr model of Carbon, how many electrons are in each energy level?
n=1 -> 2 electrons
n=2 -> 4 electrons
Two of the same element with different masses will have the same number of ______ and different number of _____.
same number of protons and different number of neutrons
Where are electrons located?
Outside the nucleus
How many protons and neutrons does Sodium-23 have?
Protons: 11
Neutrons: 12
Why do group 18 elements not usually form ions?
They already have a full valence shell
Ionic
Define covalent bonding including what type of elements are involved.
The sharing of electrons between 2 non-metals.
The periodic table is organized in increasing order of which particle?
Protons
Why are electrons not included when calculating the mass number?
They are too small
How many electrons does a phosphorus atom with a -3 charge have?
18 electrons
Why is energy released when an electron moves from a higher to a lower energy level
Electrons are attracted to the nucleus, so when they get closer to the nucleus, they release energy.
What element has 3 energy levels and 4 valence electrons?
Silicon
Which particle(s) is responsible for bonding?
Valence electrons
What is the element with 22 neutrons and a mass number of 40?
Argon
An element has 18 electrons and -1 charge, what is the element?
Chlorine
How many electrons are shared between 2 oxygen atoms bonded together?
4
In the Bohr model of an atom, what is between the nucleus and electrons?
99.9% empty space