The Chemistry of life

Quiz
•
Biology
•
7th - 9th Grade
•
Hard

Ranya Hassan
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Magnesium has an atomic number of 12. Which of the following statements is true of a neutral magnesium atom?
It has 12 protons, 12 electrons, and 12 neutrons.
It has 12 protons, 12 electrons, and six neutrons.
It has six protons, six electrons, and no neutrons.
It has six protons, six electrons, and six neutrons.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of bond represents a weak chemical bond?
Covalent bond
ionic bond
hydrogen bond
polar covalent bond
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An isotope of sodium (Na) has a mass number of 22. How many neutrons does it have?
22
12
11
44
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
The total number of protons and neutrons of the atom is its................
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
organizational chart of elements
Electron transfer
Periodic table
Octat rule
Atomic number
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic mass of "F"?
9
18
17
19
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
You find out the number of protons in an atom by atomic number.
True
False
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