Understanding Boxes on Periodic Table
↱⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺⎺↰
| 8 | <------ Is known as the ______
| Oxygen |
| O |
↳ _15.999____↲
Atomic Number
Which subatomic particle has a negative charge
Electrons
Which Element is located in Group 1 Period 1
Hydrogen (H)
How many valence electrons does Boron (B) have?
Atomic Number = 5
3 e-
A(n) ______________ cannot be broken down into any other substance.
A. compound
B. element
C. salt
D. acid
B. Element
16
Which two subatomic particles are found in the nucleus of an atom?
Which element is located in group 8 period 4
Iron
How many valence electrons does Potassium (K) have?
Atomic Number = 19
1 e-
A(n) ______________ is formed when one or more elements combine chemically.
A. electron
B. solution
C. compound
D. mixture
C. Compound
What is the Atomic Mass of Boron?
10.811
Which TWO subatomic particles are about the same size?
Protons
Neutrons
Electrons
Protons + Neutrons
Which element is located in group 18 period 7
Radon (Rn)
Which group/family is the most stable?
Group 18 (Noble Gases)
Atoms that have the same number of protons but different numbers of neutrons are called?
A. Compounds
B. Isotopes
C. Valence Electrons
D. Energy Levels
B. Isotopes
How many electrons does Sulfur have?
Atomic Number= 16
16 e-
How many protons neutrons and electrons does carbon-12 have? (Hint: Carbon's Atomic Number is 6)
Protons: 6
Neutrons: 6
Electrons: 6
Which non-metal is located in group 1?
Hydrogen (H)
Which is more reactive Neon or Lithium?
Lithium (Li)
Which of the following are elements:
A. H2
B. H2O
C. H3O
D. O2
A. H2
D. O2
How many neutrons does Manganese-55 have?
Atomic Number = 25
How do electrons move around the nucleus in the most current atomic theory?
in orbits
randomly, in no set pattern
clockwise
counterclockwise
1. Orbits
Which Alkaline Earth metal is located in period 4
Calcium (Ca)
Why is Sodium (Na) reactive?
Reminder! Sodium: Atomic Number 11
It has 1 valence electron