What are valence electrons?

electons in the outer most energy level

MT: Chemistry Midterm Review LHS

A review for the following chemistry topics: Scientific method, saftey, matter, atom, waves, periodic table, and ionic bonding #basicchemistryreview #periodictable #highschool

Flashcards23 cardsFPractice quizPHost liveL

Questions 23

Answers

1
What state of matter has no definite shape and no definite volume?
solid
gas
liquid
2
What state of matter has a definite shape and definite volume?
solid
gas
liquid
3
An isotope of an certain element will have a different number of...
neutrons
protons
electrons
atoms
4
A p orbital has what shape?
sphere
lightning bolt
propeller
bow tie
5
Which of the following is precise but not accurate? (the actual is 22.6 cm)
24.6 cm, 23.7 cm, 25.9cm
20.4 cm, 20.2 cm, 20.5 cm
22.5 cm, 22.7 cm, 22.6 cm
12.6 cm, 22.6 cm, 32.6 cm
6
Which is more electronegative?
O
Li
N
F
7
What charge does an electron have?
negative
positive
neutral
8
What family is labeled light blue (Be)?
Halogens
noble gases
alkali metals
alkali earth metals
9
Which is an example chemical change?
rusting metal
painting a wall
mixing batter
tearing a paper
10
When a mixture has visible parts to it, it is considered a...
homogeneous
compound
heterogeneous
atom
11
If a chemical splashes in your eyes you should use...
fire blanket
fire extinguisher
safety shower
eye wash
12
What section is colored orange?
p block
transition metals
representative elements
inner transition metals
13
How many significant figures does 0.00230 have?
4
3
2
1
14
What family is colored red?
noble gases
Halogens
alkali earth metals
alkali metals
15
Which of the observations below is QUALITATIVE?
35 degrees
4 mL
smooth surface
10 inches
16
What is a cation?
A compound
A negative ion
A posative ion
An atom of Ca
17
What charge does a proton have?
positive
negative
neutral
18
mass number is found by..
adding protons and neutrons
subtracting protons and electrons
adding protons and electrons
subtracting protons and neutrons
19
What state of matter has no definite shape and a definite volume?
solid
liquid
gas
20
What are valence electrons?
electrons that convert into neutrons
electons in the outer most energy level
electrons that are closest to the nucleus
electrons that determine the atomic number
21
What is the name of BeCl₂
beryllium II chloride
beryllium chloride II
beryllium chlorite
beryllium chloride
22
What section is colored grey?
inner transition metals
transition metals
representative elements
p block
23
What is the formula for ammonium sulfate?
(NH4)2SO4
NHSO
NH42SO4
NH4SO4

MT: Chemistry Midterm Review LHS Flashcards | StudBud

MT: Chemistry Midterm Review LHS

23 termsStudBud Administration509 plays

A review for the following chemistry topics: Scientific method, saftey, matter, atom, waves, periodic table, and ionic bonding #basicchemistryreview #periodictable #highschool

Flashcards23 cardsFPractice quizPHost liveL

Questions 23

Answers

1
What state of matter has no definite shape and no definite volume?
solid
gas
liquid
2
What state of matter has a definite shape and definite volume?
solid
gas
liquid
3
An isotope of an certain element will have a different number of...
neutrons
protons
electrons
atoms
4
A p orbital has what shape?
sphere
lightning bolt
propeller
bow tie
5
Which of the following is precise but not accurate? (the actual is 22.6 cm)
24.6 cm, 23.7 cm, 25.9cm
20.4 cm, 20.2 cm, 20.5 cm
22.5 cm, 22.7 cm, 22.6 cm
12.6 cm, 22.6 cm, 32.6 cm
6
Which is more electronegative?
O
Li
N
F
7
What charge does an electron have?
negative
positive
neutral
8
What family is labeled light blue (Be)?
Halogens
noble gases
alkali metals
alkali earth metals
9
Which is an example chemical change?
rusting metal
painting a wall
mixing batter
tearing a paper
10
When a mixture has visible parts to it, it is considered a...
homogeneous
compound
heterogeneous
atom
11
If a chemical splashes in your eyes you should use...
fire blanket
fire extinguisher
safety shower
eye wash
12
What section is colored orange?
p block
transition metals
representative elements
inner transition metals
13
How many significant figures does 0.00230 have?
4
3
2
1
14
What family is colored red?
noble gases
Halogens
alkali earth metals
alkali metals
15
Which of the observations below is QUALITATIVE?
35 degrees
4 mL
smooth surface
10 inches
16
What is a cation?
A compound
A negative ion
A posative ion
An atom of Ca
17
What charge does a proton have?
positive
negative
neutral
18
mass number is found by..
adding protons and neutrons
subtracting protons and electrons
adding protons and electrons
subtracting protons and neutrons
19
What state of matter has no definite shape and a definite volume?
solid
liquid
gas
20
What are valence electrons?
electrons that convert into neutrons
electons in the outer most energy level
electrons that are closest to the nucleus
electrons that determine the atomic number
21
What is the name of BeCl₂
beryllium II chloride
beryllium chloride II
beryllium chlorite
beryllium chloride
22
What section is colored grey?
inner transition metals
transition metals
representative elements
p block
23
What is the formula for ammonium sulfate?
(NH4)2SO4
NHSO
NH42SO4
NH4SO4