Which of the following statements is not correct? Isotopes of an element have
the same number of electric charges on the nucleus
the same chemical properties
different nucleon numbers
different proton numbers
different atomic masses
Correct answer is D
No explanation has been provided for this answer.
into the paper
out of the paper
towards the north pole of the magnet
towards the south pole of the magnet
towards the top of the pages
Correct answer is B
No explanation has been provided for this answer.
A
B
C
D
E
Correct answer is E
No explanation has been provided for this answer.
4.9 x 10-9N
1.3 x 10-6N
6.6 x 10-8N
6.6 x 10-6N
2.6 x 10-9N
Correct answer is D
F = \(\frac{Gm_1m_2}{r^2} = \frac{6.6 \times 10^{-11} \times 80 \times 50}{0.2 \times 0.2}\)
= 6.6 x 10-6N
6 units
8 units
10 units
12 units
Correct answer is A
No explanation has been provided for this answer.
WAEC Subjects
Aptitude Tests