• صَاعِقَة
• صَعِق
• صَعِقَ
• يُصْعَقُونَ

Appears 10 times in the Quran.

1. 2:19 أَوْ كَصَيِّبٍ مِّنَ ٱلسَّمَآءِ فِيهِ ظُلُمَٰتٌ وَرَعْدٌ وَبَرْقٌ يَجْعَلُونَ أَصَٰبِعَهُمْ فِىٓ ءَاذَانِهِم مِّنَ ٱلصَّوَٰعِقِ حَذَرَ ٱلْمَوْتِ وَٱللَّهُ مُحِيطٌۢ بِٱلْكَٰفِرِينَ

   Or like abundant rain from the cloud in which is utter darkness and thunder and lightning; they put their fingers into their ears because of the thunder peal, for fear of death, and Allah encompasses the unbelievers.
   

2. 2:55 وَإِذْ قُلْتُمْ يَٰمُوسَىٰ لَن نُّؤْمِنَ لَكَ حَتَّىٰ نَرَى ٱللَّهَ جَهْرَةً فَأَخَذَتْكُمُ ٱلصَّٰعِقَةُ وَأَنتُمْ تَنظُرُونَ

   And when you said: O Musa! we will not believe in you until we see Allah manifestly, so the punishment overtook you while you looked on.
   

3. 4:153 يَسْـَٔلُكَ أَهْلُ ٱلْكِتَٰبِ أَن تُنَزِّلَ عَلَيْهِمْ كِتَٰبًا مِّنَ ٱلسَّمَآءِ فَقَدْ سَأَلُوا۟ مُوسَىٰٓ أَكْبَرَ مِن ذَٰلِكَ فَقَالُوٓا۟ أَرِنَا ٱللَّهَ جَهْرَةً فَأَخَذَتْهُمُ ٱلصَّٰعِقَةُ بِظُلْمِهِمْ ثُمَّ ٱتَّخَذُوا۟ ٱلْعِجْلَ مِنۢ بَعْدِ مَا جَآءَتْهُمُ ٱلْبَيِّنَٰتُ فَعَفَوْنَا عَن ذَٰلِكَ وَءَاتَيْنَا مُوسَىٰ سُلْطَٰنًا مُّبِينًا

   The followers of the Book ask you to bring down to them a book from heaven; so indeed they demanded of Musa a greater thing than that, for they said: Show us Allah manifestly; so the lightning overtook them on account of their injustice. Then they took the calf (for a god), after clear signs had come to them, but We pardoned this; and We gave to Musa clear authority.
   

4. 7:143 وَلَمَّا جَآءَ مُوسَىٰ لِمِيقَٰتِنَا وَكَلَّمَهُۥ رَبُّهُۥ قَالَ رَبِّ أَرِنِىٓ أَنظُرْ إِلَيْكَ قَالَ لَن تَرَىٰنِى وَلَٰكِنِ ٱنظُرْ إِلَى ٱلْجَبَلِ فَإِنِ ٱسْتَقَرَّ مَكَانَهُۥ فَسَوْفَ تَرَىٰنِى فَلَمَّا تَجَلَّىٰ رَبُّهُۥ لِلْجَبَلِ جَعَلَهُۥ دَكًّا وَخَرَّ مُوسَىٰ صَعِقًا فَلَمَّآ أَفَاقَ قَالَ سُبْحَٰنَكَ تُبْتُ إِلَيْكَ وَأَنَا۠ أَوَّلُ ٱلْمُؤْمِنِينَ

   And when Musa came at Our appointed time and his Lord spoke to him, he said: My Lord! show me (Thyself), so that I may look upon Thee. He said: You cannot (bear to) see Me but look at the mountain, if it remains firm in its place, then will you see Me; but when his Lord manifested His glory to the mountain He made it crumble and Musa fell down in a swoon; then when he recovered, he said: Glory be to Thee, I turn to Thee, and I am the first of the believers.
   

5. 13:13 وَيُسَبِّحُ ٱلرَّعْدُ بِحَمْدِهِۦ وَٱلْمَلَٰٓئِكَةُ مِنْ خِيفَتِهِۦ وَيُرْسِلُ ٱلصَّوَٰعِقَ فَيُصِيبُ بِهَا مَن يَشَآءُ وَهُمْ يُجَٰدِلُونَ فِى ٱللَّهِ وَهُوَ شَدِيدُ ٱلْمِحَالِ

   And the thunder declares His glory with His praise, and the angels too for awe of Him; and He sends the thunderbolts and smites with them whom He pleases, yet they dispute concerning Allah, and He is mighty in prowess.
   

6. 39:68 وَنُفِخَ فِى ٱلصُّورِ فَصَعِقَ مَن فِى ٱلسَّمَٰوَٰتِ وَمَن فِى ٱلْأَرْضِ إِلَّا مَن شَآءَ ٱللَّهُ ثُمَّ نُفِخَ فِيهِ أُخْرَىٰ فَإِذَا هُمْ قِيَامٌ يَنظُرُونَ

   And the trumpet shall be blown, so all those that are in the heavens and all those that are in the earth shall swoon, except such as Allah please; then it shall be blown again, then lo! they shall stand up awaiting.
   

7. 41:13 فَإِنْ أَعْرَضُوا۟ فَقُلْ أَنذَرْتُكُمْ صَٰعِقَةً مِّثْلَ صَٰعِقَةِ عَادٍ وَثَمُودَ

   But if they turn aside, then say: I have warned you of a scourge like the scourge of Ad and Samood.
   

8. 41:17 وَأَمَّا ثَمُودُ فَهَدَيْنَٰهُمْ فَٱسْتَحَبُّوا۟ ٱلْعَمَىٰ عَلَى ٱلْهُدَىٰ فَأَخَذَتْهُمْ صَٰعِقَةُ ٱلْعَذَابِ ٱلْهُونِ بِمَا كَانُوا۟ يَكْسِبُونَ

   And as to Samood, We showed them the right way, but they chose error above guidance, so there overtook them the scourge of an abasing chastisement for what they earned.
   

9. 51:44 فَعَتَوْا۟ عَنْ أَمْرِ رَبِّهِمْ فَأَخَذَتْهُمُ ٱلصَّٰعِقَةُ وَهُمْ يَنظُرُونَ

   But they revolted against the commandment of their Lord, so the rumbling overtook them while they saw.
   

10. 52:45 فَذَرْهُمْ حَتَّىٰ يُلَٰقُوا۟ يَوْمَهُمُ ٱلَّذِى فِيهِ يُصْعَقُونَ

    Leave them then till they meet that day of theirs wherein they shall be made to swoon (with terror):