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Atomic Structure & Periodic Table 2 Flashcards | StudBud
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Atomic Structure & Periodic Table 2
Atomic Structure & Periodic Table 2
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Chemistry Review- Middle Schoo #middleschool #6thgrade #science
Flashcards
35 cards
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Questions
35
Answers
1
What happens during a covalent bond
Hydrogen gives to Neon
Hydrogen shares with Nitrogen
Hydrogen shares with Neon
Hydrogen gives away to Nitrogen
2
If Boron has 3 valence electrons, how many dots would you draw for a lewis structure?
8
3
2
1
3
What is the atomic symbol for Sodium?
S
Na
N
So
4
What two parts of an atom make up the nucleus?
ions and isotopes
protons and neutrons
protons and electrons
electrons and neutrons
5
What is the atomic weight of chromium
20
24
51.996
52
6
Who designed the periodic table?
Albert Einstein
Mrs. Thomas
Dmitri Mendeleev
Some scientist that no one knows
7
The atomic number is equal to the number of ______________ OR ________________
protons; electrons
protons; neutrons
electrons; neutrons
8
What is the atomic number of chromium?
21
24
51.996
52
9
What part of the atom has a neutral charge?
Electron
Neutron
Proton
10
How many electrons can the outermost electron shell hold?
Two
Eight
One
Three
11
How many protons does oxygen have?
O
16
8
4
12
How many neutrons would an atom of Sulfur have?
32
16
0
8
13
How many atoms are in the compound H
2
SO
4
?
4
3
6
7
14
The horizontal rows on the periodic table are called
groups
columns
periods
rows
15
What type of bond is depicted below?
Covalent
Ionic
16
The atomic mass is equal to ___________________ + _________________
protons; protons
protons; neutrons
neutrons; electrons
protons; electrons
17
What holds compounds together?
Chemical Bonds
Physical formula
Chemical Models
Physical connection
18
What specific type of chemical bond is seen below with NaCl
Ionic
Covalent
19
Which element is not found in the compound H
2
SO
4
Sulfur
Oxygen
Sodium
Hydrogen
20
If an atom has an unequal number of protons and electrons it is called a(n)?
unhappy
happy
ion
isotope
21
The vertical columns on the periodic table are called
columns
rows
periods
groups
22
A substance that cannot be broken down chemically or physically is a(n)
Compound
Molecule
Element
Mixture
23
If 3 Hydrogen bond to 1 Nitrogen what compound will they form?
H2O
NH3
CO2
H2O2
24
Which example is a compound?
H2O
Cl
Mg
C
25
What part of the atom is located on shells outside of the nucleus?
neutrons
protons
ions
electrons
26
The basic unit of matter is...
Elements
Atoms
Compounds
Molecules
27
How many electrons can the innermost energy shell hold?
Two
Three
One
Eight
28
Oxygen has an atomic # of 8 and atomic mass of 15.99. How many neutrons does Oxygen have?
16
2
O
8
29
What is the oxidation number of Phosphorus if it is in group 5?
P3+
Ph3-
Ph3+
P3-
30
What happens during an ionic bond
Sodium gives an electron to Chlorine
Sulfur shares and atom with chlorine
Sodium shares electrons with chlorine
Sulfur gives chlorine an electrons
31
Using the diagram, how many electrons does Iodine have?
53
37
74
26
32
An ion has an unequal number of...
neutrons and electrons
protons and electrons
protons and neutrons
electrons and neutrons
33
If an atom has 14 protons and 12 electrons it is a
negative ion
positive ion
34
A neutral atom has an equal amount of
protons and electrons
protons and neutrons
neutrons and protons
electrons and neutrons
35
How many elements are in the compound H
2
SO
4
4
2
3
1
