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WorksheetsThe Basics: Atoms and the PT
Total questions: 20
Worksheet time: 20mins
The following atom has ___ protons (p+)?
7
9
10
19
The following atom has ___ electrons (e-)?
7
9
10
19
The following atom has ___ neutrons ( n0 )?
7
9
10
19
If an atom has 5 p+, 5 e-, and 6 neutrons, what is the atomic number of this atom?
5
6
10
11
If an atom has 5 p+, 5 e-, and 6 neutrons, what is the mass number of this element?
5
6
10
11
If an atom has 5 p+, 5 e-, and 6 neutrons, what element is it?
boron
carbon
neon
sodium
If an atom has 5 p+, 5 e-. and 5 neutrons, what would be the correct isotope notation for the following atom/element?
56B
511B
56C
511Na
How many neutrons does an element with an average atomic mass of 35.45 grams and an atomic number of 17 have?
17
18
19
36
What group is in nitrogen (N) in?
2
5A
7
15A
What period is in chlorine (Cl) in?
2
3
7A
17
What class does magnesium (Mg) belong to?
metal
nonmetal
metalloid
Alkaline Earth Metals
What class does bromine (Br) belong to?
metal
nonmetal
metalloid
Halogens
What family is sodium (Na) in?
metal
nonmetal
noble gas
Alkali Metal
Elements in Group 8A belong to which nonreactive family?
Transition metals
nonmetals
noble gases
Halogens
The elements Hydrogen (H) and Helium (He) are exceptions to a lot of patters/rules on the periodic table. What class of elements does Hydrogen (H) belong to?
metals
nonmetals
metalloids
alkali metals
How many valence electrons does Oxygen (O) have?
2
6
8
16
How many valence electrons does calcium (Ca) have?
2
4
20
40
How many energy levels (orbitals) does oxygen (O) have?
2
6
8
18
How many energy levels (orbitals) does calcium (Ca) have?
2
4
20
40
The number 3 represents lithium's _____.
mass number
neutrons
valence electrons
protons
