Atomic Structure Basics
What subatomic particles are found in the nucleus of an atom?
p and n
How many electrons can the first energy level hold at maximum?
2
What is an isotope?
different number of neutrons
What do elements in the same group/family have in common?
Valence e
Which type of element is usually the best conductor of electricity?
metals
Why is an atom considered electrically neutral?
same p as e
How many electrons can the second energy level hold at maximum?
8
What is different between two isotopes of the same element?
neutrons
Where are metals generally located on the periodic table?
left of metalloids
Why are noble gases considered the least reactive elements?
8 valence e, or 2 for helium
Which subatomic particle determines the atomic number of an element?
p
how many electrons does sulfur have?
16
What remains the same between two isotopes of the same element?
protons
Where are transition metals located on the periodic table?
middle section that we skip
At room temperature, what state of matter are most metals found in?
Solid
How do you calculate the number of neutrons in an atom?
Mass # - P
How many valence electrons does sodium have?
1
What is the symbol for carbon with 6 protons and 6 neutrons?
Carbon - 12
What term describes the horizontal rows of the periodic table?
periods
Why is hydrogen placed in Group 1 on the periodic table?
1 valence e
Explain what determines an element’s mass number.
P + N
Which part of the periodic table tells you how many energy levels an atom has?
period
What measurement on the periodic table helps determine the mass of the most common isotope of an element?
Atomic Mass
Boron, carbon, nitrogen, and oxygen are all found in the same what?
period
give me 2 properties of metals, and 2 of non metals
Metals - Shiny, Ductile, Malleable, Conductors
Non-Metals - Brittle, Dull, Poor conductors