Periodic Table 11-20 Flashcards
1
Q
Sodium • symbol • atomic number • atomic weight • proton • neutron • electrons • valence electrons • family • group • period • Lewis dot
A
Symbol- Na
Atomic Number- 11
Atomic Weight/Mass- 23
Protons- 11
Neutrons- 12
Electrons- 11
Valence Electrons- 1
Family- Alkali Metals
Group- 1
Period- 3
LEWIS DOT:
Na ∙
2
Q
Magnesium • symbol • atomic number • atomic weight • proton • neutron • electrons • valence electrons • family • group • period • Lewis dot
A
Symbol- Mg Atomic Number- 12 Atomic Weight/Mass- 24 Protons- 12 Neutrons- 12 Electrons- 12 Valence Electrons- 2 Family- Alkaline Earth Metals Group- 2 Period- 3 LEWIS DOT: ∙ Mg ∙
3
Q
Aluminum • symbol • atomic number • atomic weight • proton • neutron • electrons • valence electrons • family • group • period • Lewis dot
A
Symbol- Al Atomic Number- 13 Atomic Weight/Mass- 27 Protons- 13 Neutrons- 14 Electrons- 13 Valence Electrons- 3 Family- Boron Group- 13 Period- 3 LEWIS DOT: ∙ ∙ Al ∙
4
Q
Silicon • symbol • atomic number • atomic weight • proton • neutron • electrons • valence electrons • family • group • period • Lewis dot
A
Symbol- Si Atomic Number- 14 Atomic Weight/Mass- 28 Protons- 14 Neutrons- 14 Electrons- 14 Valence Electrons- 4 Family- Carbon Group- 14 Period- 3 LEWIS DOT: ∙ ∙ Si ∙ ∙
5
Q
Phosphorus • symbol • atomic number • atomic weight • proton • neutron • electrons • valence electrons • family • group • period • Lewis dot
A
Symbol- P Atomic Number- 15 Atomic Weight/Mass- 31 Protons- 15 Neutrons- 16 Electrons- 15 Valence Electrons- 5 Family- Nitrogen Group- 15 Period- 3 LEWIS DOT: ∙ ∙ P : ∙
6
Q
Sulfur • symbol • atomic number • atomic weight • proton • neutron • electrons • valence electrons • family • group • period • Lewis dot
A
Symbol- S Atomic Number- 16 Atomic Weight/Mass- 32 Protons- 16 Neutrons- 16 Electrons- 16 Valence Electrons- 6 Family- Oxygen or Chalcogens Group- 16 Period- 3 LEWIS DOT: ∙ \: S : ∙
7
Q
Chlorine • symbol • atomic number • atomic weight • proton • neutron • electrons • valence electrons • family • group • period • Lewis dot
A
Symbol- Cl Atomic Number- 17 Atomic Weight/Mass- 35 Protons- 17 Neutrons- 18 Electrons- 17 Valence Electrons- 7 Family- Halogens Group- 17 Period- 3 LEWIS DOT: ∙ ∙ \: Cl : ∙
8
Q
Argon • symbol • atomic number • atomic weight • proton • neutron • electrons • valence electrons • family • group • period • Lewis dot
A
Symbol- Ar Atomic Number- 18 Atomic Weight/Mass- 40 Protons- 18 Neutrons- 22 Electrons- 18 Valence Electrons- 8 Family- Noble gases Group- 18 Period- 3 LEWIS DOT: ∙ ∙ \: Ar : ∙ ∙
9
Q
Potassium • symbol • atomic number • atomic weight • proton • neutron • electrons • valence electrons • family • group • period • Lewis dot
A
Symbol- K
Atomic Number- 19
Atomic Weight/Mass- 39
Protons- 19
Neutrons- 20
Electrons- 19
Valence Electrons- 1
Family- Alkali Metals
Group- 1
Period- 4
LEWIS DOT:
K ∙
10
Q
Calcium • symbol • atomic number • atomic weight • proton • neutron • electrons • valence electrons • family • group • period • Lewis dot
A
Symbol- Ca Atomic Number- 20 Atomic Weight/Mass- 40 Protons- 20 Neutrons- 20 Electrons- 20 Valence Electrons- 2 Family- Alkaline Earth Metals Group- 2 Period- 4 LEWIS DOT: ∙ Ca ∙
11
Q
Ions
A
Atoms or groups of atoms with a positive or negative charge (called cation or anion). Elements become this when they gain or lose electrons and will have a superscript and a charge.
12
Q
Cation
A
Has lost electron(s) and has a positive charge since there are less electrons than protons.
ex. Mg⁺²
13
Q
Anion
A
Has gained an electron(s) and has a negative charge because there are more electrons than protons.
ex. N⁻³
14
Q
Isotopes
A
Atoms with the same number of protons and a different number of neutrons and is identified by mass number (atomic mass), which is the sum of protons and neutrons in the nucleus.
Neutrons can be added/gained.
15
Q
Most common isotope for carbon and other examples
A
Carbon-12 (Most common)
Carbon-13 and Carbon-14
• Have different mass numbers but react the same way chemically
