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What do you know about the Periodic Table? Flashcards | StudBud
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What do you know about the Periodic Table?
What do you know about the Periodic Table?
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#periodic table #grade 8 #science
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Answers
1
read the picture
penny experienced color change and is in new state of matter
The penny experienced a color change and produced light.
The penny experienced a color change, and a gas was produced
penny experienced color change, and a precipitate was formed
2
Which of these statements above correctly represents the mass of subatomic particles?1,
4,6, 8
1, 6,9
2, 6, 8
3, 4, 7, 9
3
answer the following question
steel
Aluminum
gold
Copper
4
which of the following groups of elements has the smallest Atomic number in period 4?
group 17
group 4
group 18
group 1
5
read the picture
30
26
82
56
6
read the picture
The bubbles indicated a chemical change was occurring
The gas was oxygen
baking soda and vinegar were products of chemical reaction
7
Which of the following groups in the periodic table is reactive metals?
Group 6
group 1
group 18
Group 17
8
Copper is a common metal. Which of the following properties does this metal most likely Have?
Low conductivity, low malleability, and low luster
Low conductivity, high malleability, and high luster
High conductivity, high malleability, and low luster
Low conductivity, high malleability, and high luster
9
Based on the data table, which area would have the best chance at having organicCompounds?
Area 4
Area 2
Area 1
area 3
10
which of the following groups of elements has the smallest Atomic number in period 4?
Group 17
Group 1
Group 18
Group 4
11
Which of these statements above correctly represents the mass of subatomic particles?
2, 6, 8
3, 4, 7, 9
4,6,8
1, 6,9
12
What is an example of a physical change that occurs
Teeth grind and tear food into smaller pieces in the mouth.
Digestive enzyme stomach break down protein into amino acid
Saliva in the mouth converts starches into simple sugars.
Pancreatic enzymes break down fats into fatty acids.
13
The capability of a substances to be stretched into thin wires without breaking is knowAs-
Malleability
Conductivity
Luster
Ductility
14
read the picture and answer with the correct letter.
A.
B.
D.
C.
15
Refer to the above image. Which of these is not found in the nucleus of an atom?
atom mass
Electrons
Neutrons
Protons
16
Which one is The most reactive metal
2 valence electron
1 valence electron
4 valence electron
3 valence electron
17
read the picture
4.0g/cm³
0.4g/cm³
2.25g/cm³
4.0g/cm³
18
measures 3 cm and The mass of the cube is 12 g.What is the approximate density of the cube?
4.0g/cm³
36g/cm³
2.25g/cm³
0.4g/cm³
19
What is the element name and reactivity of the atom with 17 protons and 7 valence electrons?
The element is Chromium, and it has low reactivity
The element is Chlorine, and it has low reactivity
The element is Chromium, and it has high reactivity.
The element is Chlorine, and it has high reactivity.
20
Refer to the above image. Which of these is not found in the nucleus of an atom? which is true.
reactants and products different numbers atoms each element
An element or compound must be accompanied by a phase change
different elements on the reactant side and the product side
this one is not correct it is to long
21
What determines the identity of a Beryllium atom?
The atom has 4 electrons.
The atom has a mass of 9 amu.
The atom has 4 protons.
The atom has 5 neutrons.
22
which two Elements would have the most similar chemical properties?
Sodium and magnesium
Potassium and calcium
Potassium and magnesium
Sodium and potassium
23
read the picture
penny experienced a color change, & a precipitate was formed
penny experienced a color change & is in new state of matter
The penny experienced a color change and produced light
The penny experienced a color change, & a gas was produced.
24
Which of the following elements is rarely found in organic compounds?
W
H
C
O
25
electrical charge of the nucleus of an atom that has 11 protons, 12 neutrons, And 11 electrons?
+11
-11
-12
+12
