What is the difference between an ionic and covalent bond?

ionic = give away, covalent =share

What is the mass number

the average weight of an atom based on isotopes

Why are cations and anions attracted to each other?

anions are negative and are attracted to positive cations

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Periodic Table

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Periodic Table trends, writing chemical formulas and basic information and definitions of the information in each tile.

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Questions 20

Answers

1
What is the difference between an ionic and covalent bond?
ionic bonds are attracted to one another
ionic = share, covalent = give away
ionic bonds have a lot more electrons than covalent bonds
ionic = give away, covalent =share
2
All of the elements on the far right (noble gases) are...
Have 3 energy levels
Have 2 energy levels
reactive
stable
3
columns are known as the...
groups
oxidation numbers
valence electrons
energy levels
4
What are the letters in the middle of the tile called?
atomic weight
element letter
element symbol
atomic mass
5
What is the oxidation number of the third column of the periodic table.
-3
+3
-2
-1
6
The second row in the periodic table allows _ electrons in its energy level
17
2
8
18
7
The first column in the periodic table has an oxidation number of...
+1
+2
-4
-1
8
Which one of these things are not listed in a periodic tile?
atomic number
atomic weight
oxidation number
element name name or symbol
9
True or false: The number at the bottom of the of the tile is the actual weight
False
True
10
What do the columns tell you?
amount of valence electrons
what group (ex: noble gases)
Both a and b
number of protons
11
What is the chemical formula for Magnesium (+2) Fluoride (-1)
MgF2
4Ma2
Mg3F
MgF3
12
The electrons present in the outermost shell of an atom is/are called...
valence electrons
ions
neutrons
isotopes
13
how can you tell if it will be ionic or a covalent bond by just looking at the table ?
you can't tell
ionic = metal and non metal
covalent = non metal and metal
it will be ionic if one of the atoms are stable
14
What is the chemical formula for sodium (+1) Phosphide (-3). Do as explained in the video
NaP
NaP3
Na3P
4NaP3
15
What does the subscript 2 in CO₂stand for
2 Oxygen atoms in the molecule
two hydrogen bonds
two carbon atoms
two electrons in the oxygen molecule
16
What does the atomic mass number signify
number of protons and electrons
atomic weight
number of protons and neutrons
number of neutrons and eectrons
17
What is the number at the bottom of the tile called?
atomic mass
periodic mass
element symbol
average atomic mass
18
What is the mass number
the weight of an electron
average weight of an atom based on the number of electrons
the average weight of an atom based on isotopes
the weight of a proton
19
What group gives electrons to noble gases
alkali metals
none
metals
halogens
20
Why are cations and anions attracted to each other?
what are cations?
cations have more protons in the nucleus of their atom
cations are negative and are attracted to positive anions
anions are negative and are attracted to positive cations

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