Structure of an atom
The number of protons in each atom of an element
Atomic number
What is an ionic bond?
Ionic bonds form when one or more electrons are transferred from one atom to another.
What is the electron configuration for an element with an atomic number of 3?
2, 1
The columns on the periodic table are called
Groups
What is the mass number equation?
mass number = number of protons + number of neutrons
What are the two subatomic particles located in the nucleus?
Protons and neutrons
What is the ion name of an atom when:
- It loses an electron/s
- It gains an electron/s
- It loses an electron/s - CATION
- It gains an electron/s - ANION
2, 8, 8, 2
What is an istope
Atoms of the same element with different mass numbers
Identify the charge of all three subatomic particles
Protons - positive
Electrons - negative
Neutrons - no change
1. Metal written before non-metal
2. Metal name doesn't change
3. Non-metal name changes to have 'ide' at the end
Draw the shells and electron configuration for Neon which has an atomic number of 10
drawing of 2, 8
The staircase on the periodic table has what type of elements?
Metaloids
What is the difference between a stable and an unstable isotope?
A stable isotope is one in which the nucleus is unlikely to break apart.
An unstable isotope is one in which the nucleus is likely to break apart
Identify the mass of the three subatomic particles
Protons - 1
Neutrons - 1
Electrons - 1/1840 or pretty much no mass
What is the ionic compound formula for these two ions:
Mg2+
F-
MgF2
How many electron shells would you need for atom with an atomic number of 13
3
Group 1 of the periodic table are highly reaction - what do they all have in common?
1 valence electron
I have Carbon-12 and Carbon-14.
Looking at the periodic table, which one is the isotope?How do you know?
Carbon-14.
On periodic table carbon's mass number is 12.
What keeps the electrons from not flying away?
Attraction to the protons in the nucleus as opposites attract.
If an atom needs to lose 2 electrons to gain a full valence shell, can it still form an ionic bond with an atom that only needs to gain 1 electron to gain a full valence shell? Explain your answer.
Yes, the atom can still form an atomic bond with just a different ratio - eg: H2O formed when two hydrogen atoms bonded with 1 oxygen atom
What is the name of the last shell in an atom and the electrons that are located in this shell?
What does this number tell us about these atoms?
Valence shell and valence electrons.
Number tells us how they might react
What are the three types of radioactive decay?
Alpha, beta and gamma