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WorksheetsAtoms Quiz
Total questions: 15
Worksheet time: 8mins
Which phrase describes an atom?
A positively charged electron cloud surrounding a positively charged nucleus
A positively charged electron cloud surrounding a negatively charged nucleus
A negatively charged electron cloud surrounding a positively charged nucleus
A negatively charged electron cloud surrounding a negatively charged nucleus
Which of the following describes a proton?
I. Has mass
II. Has no mass
III. Has a positive charge
IV. Found in the cloud V. Has a neutral charge
II, IV and V
I, III, IV
II and IV
I and III
Isotopes of the same element must have the same number of
Protons
Neutrons
Electrons
Neutrons & Electrons
A neutral atom of 37Cl has:
37 protons, 37 neutrons, and 37 electrons
17 protons, 37 neutrons, and 17 electrons
17 protons, 20 neutrons, and 37 electrons
17 protons, 20 neutrons, and 17 electrons
Which total mass is the smallest?
The mass of 2 protons
The mass of 2 neutrons
The mass of 2 electrons
The mass of 1 electron plus the mass of 1 proton
Which of the following is a true statement?
Al3+ has 16 electrons
S 2- has 2 electrons
Br1- has 34 electrons
Ca2+ has 18 electrons
Who discovered the electron?
Rutherford
Thomson
Milikan
Dalton
