Which statement about the numbers of particles in atoms is correct?

5070_s09_qp_1

MCQ

2009

Paper 1, Variant 0

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An atom, X, contains 16 protons. Which statement about X is correct?

5070_s12_qp_11

MCQ

2012

Paper 1, Variant 1

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An atom of which element gains three electrons when it forms an ion?

5070_s12_qp_11

MCQ

2012

Paper 1, Variant 1

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An atom of which element has the same electronic configuration as the strontium ion?

5070_s13_qp_11

MCQ

2013

Paper 1, Variant 1

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Sodium is in Group I of the Periodic Table. When sodium combines with chlorine, what happens to each sodium atom?

5070_s13_qp_12

MCQ

2013

Paper 1, Variant 2

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A radioactive isotope of carbon has more nucleons than the non-radioactive isotope, C . How many protons, neutrons and electrons could there be in this radioactive isotope of carbon?

5070_s14_qp_11

MCQ

2014

Paper 1, Variant 1

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An element is in Period 3 and Group VII of the Periodic Table. Which statement about this element is correct?

5070_s14_qp_11

MCQ

2014

Paper 1, Variant 1

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An ion X + has 23 nucleons and 10 electrons. What does the nucleus of X contain?

5070_s14_qp_12

MCQ

2014

Paper 1, Variant 2

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A particle contains 34 protons, 45 neutrons and 36 electrons. Which symbol is correct for this particle?

5070_s15_qp_11

MCQ

2015

Paper 1, Variant 1

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Which dot-and-cross diagram, showing all the outer shell electrons of each atom, is not correct?

5070_s16_qp_11

MCQ

2016

Paper 1, Variant 1

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