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WorksheetsFirst nine week
Total questions: 34
Worksheet time: 2hrs 34mins
How many electrons are in the 2s orbital of Calcium?
1
2
6
10
What are the sublevel orbital(s) that make up the fourth energy level (n = 4)?
s
s, p
s, p, d
s, p, d, f
How many electrons are in the 2p orbital of Aluminum?
6 electrons
13 electrons
1 electrons
8 electrons
What is the correct electron configuration of Fluorine?
1s² 2s² 2p⁵
[He] 2s² 2p⁶
1s² 2s² 2p⁶
[Li] 2s² 2p⁵
What element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²?
Calcium
Potassium
Argon
Neon
What element has the electron configuration 1s² 2s² 2p⁴?
Oxygen
Neon
Fluorine
Nitrogen
What element has this orbital notation?
lithium
beryllium
boron
carbon
What is the charge and mass of a neutron?
+1 charge, 1 amu
0 charge, 1 amu
0 charge, 0 amu
-1 charge, 0 amu
What is the charge and mass of a proton?
+1 charge, 1 amu
0 charge, 1 amu
0 charge, 0 amu
-1 charge, 0 amu
How many valence electrons are in Chlorine
4
5
6
7
What is a example of lab safety?
Keep your hair down
Eat a snack before an experiment
Keep your goggles on at all times
Play around the equipment
Sir J.J. Thompson discovered the electron in 1897. How did Thompson explain the overall neutral charge of the atom?
Electrons are present all over the atom, even in the nucleus.
Electrons alternate between positive and negative charges.
Negative electrons were inside a cloud of positive charge.
Electrons travel around the nucleus at great speeds.
What is the atomic number of this atom?
2
4
6
none of the above
A tentative scientific explanation that can be tested by further observation or by experimentation
Observation
Inference
Hypothesis
Controlled Experiment
When a hypothesis is tested by an experiment in which only one variable is changed and all other variables should be kept unchanged.
Observation
Inference
Hypothesis
Controlled Experiment
The act of noticing and describing events or processes in a careful, orderly way
Observation
Inference
Hypothesis
Controlled Experiment
What is one goal of science?
Provide natural and testable explanations for events in the natural world
Provide a source of data for companies to use for advertisement and making claims
Provide experiments that can later be used to make a hypothesis
Provide observations and drawing conclusions without having supporting data
What does this symbol mean?
Harmful Irritant
Oxidising
Flammable
Corrosive
