Atoms
Protons and Electrons
Periodic Table
Chemical Formula
Random
100
Which of the following best completes the below statement about the structure of an atom?
A core of _____
and ______
neutrons
grouped together surrounded by
_________.
What is Proton Neutrons
Electrons
100
Selenium has an atomic number of _____ and a mass number of _______
What is 34, 79
100
Pick two elements that have 4 energy level?
What is any elements in group 4
100
Which of the following represents a single atom?
Select TWO correct answers.
A. Mn
B. O2
C. K2O
D. 2K
E. I
What is A and E
100
Which one is a warm front?
What is line 2
200
Most of the mass of an atom is located where?
What is a Nucleus
200
An atom consists of 21 protons, 22 neutrons, and a number of electrons. Which information will be MOST helpful in determining the atom's identity?
What is a proton
200
describe valence electrons? Select TWO correct
A.
The number of valence electrons is equal to the atomic number of the element.
B.
Valence electrons can be used to identify an atom.
C.
The number of valence electrons is equal to the group number of the element.
D.
Valence electrons determine the reactivity of an atom.
E.
Valence electrons are located in the nucleus of an atom.
What is C and D
200
How many atoms, in total, are in the chemical formula below?
Co(NO3)2
What is 9
200
Draw the 8 phrases of the lunar cycle in order starting with New moon.
What is new moon, waxing crescent,1st quarter, waxing gibbous, full moon, waning gibbous, last quarter, waning crescent
300
Use the periodic table below to answer the following question.
Which elements have 3 energy levels in their atoms?
What is any element in Period 3
300
Which elements have similar chemical reactivity to Tellurium (Te)? Select THREE correct answers.
What is Any 3 elements in Group 16
300
describe protons? Select TWO correct answers.
A.
The number of protons is equal to the atomic number of the element.
B.
Protons can be used to determine the reactivity of an atom.
C.
The number of protons is equal to the group number of the element.
D.
Protons can be used to determine the identity of an atom.
E.
The number of protons and neutrons will always be equal in a neutrally charged atom.
What is A and D
300
A chemical formula is displayed below:
(NH4)3PO4
How many atoms, in total, are in this chemical formula?
what is 20
300
Label the seasons from North Hemisphere
What is position A - Winter
Position B - spring
Position C - Summer
Position D - Fall
400
An electrically neutral atom consists of 17 neutrons, 13 electrons, and a number of protons. What is its mass number?
What is 30
400
How many protons and valence electrons does Strontium (Sr) have
What is 38 protons and 2 valence electrons
400
Label the valence electrons for each element shown
Na-1 Ve
Ba-2 Ve
Sn-4 Ve
S-6 Ve
Kr-8 Ve
400
Which of the following statements accurately describe the chemical formula displayed below?
H3PO4
Select TWO correct answers.
A.There are 3 different elements represented in the chemical formula.
B.There are 4 phosphorus atoms represented in the chemical formula.
C.There is 1 phosphorus atom represented in the chemical formula.
D.There are 2 different elements involved in the chemical formula.
E.There are 7 total atoms represented in the chemical formula.
What is A and C
400
A scientist observing the moon looked up and noticed the moon was in the phase displayed below.
What 4 phrases comes next
What is New Moon, Waxing Crescent, 1st quarter, Waxing Gibbous
500
What 3 students are right?
What is student 2,4,5
500
Draw APEMAN for Krypton
A-36 M- 84
P- 36 A- 36
E- 36 N- 48
500
Sulfur (S) and sodium (Na) are two elements found on the periodic table. Which of the following statements accurately describe these two elements?
Select TWO correct answers.
A.Sulfur (S) and sodium (Na) are in the same period.
B.Sulfur (S) and sodium (Na) are in the same group.
C.Atoms of sulfur (S) and sodium (Na) have the same number of valence electrons.
D.Sulfur (S) and sodium (Na) are both nonmetals that are insulators of heat.
E. Atoms of sulfur (S) and sodium (Na) have the same number of energy levels.
What is A and E
500
A group of students are generating a statement that accurately describes the chemical formula displayed below.
C3H7NO2
What information would accurately complete the statement?
There are ____elements and ____total atoms involved in the chemical formula displayed.
What is 4 elements and 13 total atoms
500
During the daytime on area coastlines, the temperature of the air over the land is
______
than the temperature of the air over the water. However, during the nighttime, the situation is reversed and the air over the water is warmer than the air over the land. This most commonly creates
___________.
What is warmer and sea breezes and land breezes