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Q 1/28
Score 0
What is oxygen's atomic number?
60
O
8
15.994
6A
Q 2/28
Score 0
How many protons are in one atom of sodium (Na)?
60
22
7
1
11
28 questions
Q.
What is oxygen's atomic number?
1
60 sec
Q.
How many protons are in one atom of sodium (Na)?
2
60 sec
Q.
An unknown atom has 32 protons. What is the unknown atom?
3
60 sec
Q.
How many protons are in the nucleus of calcium (Ca)?
4
60 sec
Q.
How many protons are in one atom of potassium (K)?
5
60 sec
Q.
What is the average atomic mass of fluorine?
6
60 sec
Q.
All atoms of a specific element have the same number of _______.
7
60 sec
Q.
Which element on the periodic table contains 11 protons?
8
60 sec
Q.
Which of the following elements has the greatest atomic mass?
9
60 sec
Q.
Mercury is an element. Which of the following would be the same for all atoms of mercury?
10
60 sec
Q.
What is the chemical symbol for mercury?
11
60 sec
Q.
What is the chemical symbol for sodium?
12
60 sec
Q.
What is the chemical symbol for nitrogen?
13
60 sec
Q.
Most of the nonmetals on the periodic table are located
14
60 sec
Q.
Based on trends in the periodic table, which of these elements could be added to the column of less reactive elements in this table?
15
60 sec
Q.
At standard temperature and pressure, the element with the chemical symbol _______ is a liquid.
16
60 sec
Q.
Elements are arranged in the periodic table based on various patterns. For example, the element magnesium (Mg)
17
60 sec
Q.
Which of the following groups of elements should have very different chemical properties?
18
60 sec
Q.
What kind of elements are on the right side of the zig-zag line on the periodic table?
19
60 sec
Q.
_______ created the periodic table by arranging the elements in a grid according to their properties.
20
60 sec
Q.
Helium (He), neon (Ne) and argon (Ar) are all colorless, odorless gases with low chemical reactivity. Based on the periodic table, which other element would also have those same properties?
21
60 sec
Q.
Which of the following groups of elements should have very similar chemical properties?
22
60 sec
Q.
How are elements organized on the periodic table?
23
60 sec
Q.
Which of the following statements is true?
24
60 sec
Q.
Based on the positions (Group 1) of sodium (Na) and potassium (K) in the table, Tracy can predict that sodium
25
60 sec
Q.
Elements are arranged in the periodic table based on various patterns. For example, elements found in the rows near the top
